It was mid-December, around six or seven in the evening, on the streets of Tokyo; the sky had gradually darkened.
A handsome, tall, and thin young man wearing the uniform of Private Seishin Academy yawned as he strolled lazily through the busy streets.
"From your past, past, past life, I began searching for you... I aimed for that awkward way you laugh and came all this way..."
Suddenly, a melodious ringtone rang out, rousing the drowsy young man's spirits a bit. He fished his phone out of his pocket, glanced at the caller ID on the screen, and answered the call.
"Yuu-chan, I have some work matters to deal with tonight. Yukikaze will also be coming with me to handle these things. I've already made dinner and put it in the refrigerator, so remember to heat it up yourself when you get back."
"Although school winter break starts tomorrow, you can't play games too late tonight just because I'm not home, okay?"
After connecting the call, a slightly husky yet charming voice came from the phone, earnestly giving Yuu Mizuki a few instructions.
"Auntie Shiranui, what kind of work do you have to do tonight that requires Yukikaze to go with you?"
"Don't tell me you've become a Taimanin again and are going to subdue monsters and demons, and even that girl Yukikaze is doing the same?"
Standing by the city street, Yuu Mizuki frowned, clutching his phone, and subconsciously quickened his pace.
As a transmigrator, he knew from the very beginning the identity of the beautiful older sister who had taken him in when he was homeless: Shiranui Mizuki, a Taimanin.
However, with Yuu Mizuki's appearance and the gradual growing up of his stepsister Yukikaze, Shiranui Mizuki had retired, leaving the front lines of fighting monsters and demons.
If possible, Yuu Mizuki did not want Shiranui to become a Taimanin again and continue that dangerous life, nor did he want Yukikaze to embark on the path of a Taimanin.
Although there might be many dangers in this world, Yuu Mizuki felt that with the "Cheat System" he finally awakened some time ago, he should be capable of protecting them!
"Don't worry, Yuu-chan. Although it's been a long time since I fought and killed monsters after retiring, that doesn't mean my skills have regressed."
"I'm just accompanying Yukikaze this time. As a new Taimanin, the tasks she needs to perform are usually not very difficult. Besides, there are other teammates, so there won't be any danger."
Hearing Shiranui's confident words on the other end of the phone, Yuu Mizuki couldn't help but roll his eyes, recalling the scene when he first traveled to this world.
He remembered that before he transmigrated, he planned to find a place to intern during the National Day holiday. As a result, on his way to the company interview... while waiting at a crosswalk with a red light that lasted at least two or three minutes, standing outside the pedestrian lane and opening a Naruto mobile game on his phone to wait, a semi-trailer loaded with building materials suddenly rushed out from the distance and crashed straight into him!
When he came to his senses, he found himself in a strange abandoned factory. His body seemed to have shrunk to that of a six or seven-year-old child, and standing in front of him was a beautiful older sister in a bodysuit with a very amazing figure!
According to Shiranui Mizuki, he suddenly appeared and fell from the sky, landing right in front of her.
It was also because of Yuu Mizuki's sudden appearance that he happened to crush a tentacle monster hiding in the dark that was attempting to ambush Shiranui Mizuki.
After that, Yuu Mizuki, who had just traveled to this strange world and was homeless, was taken home by Shiranui Mizuki. She named him "Yuu Mizuki" since he couldn't remember his original name clearly.
"Anyway, be careful when facing those cunning monsters. Don't be careless!"
"Even if you are strong, you absolutely cannot let your guard down. Where are you going to perform the mission this time?"
Recalling what happened when he first traveled to this world, Yuu Mizuki couldn't help but nag a few more times.
If it weren't for his appearance back then, Shiranui Mizuki might have been successfully ambushed by that tentacle monster hiding in the dark, and then captured and trained into a cum dumpster!
Moreover, from the Taimanin-themed eroge and anime works he had seen before transmigrating, most of the Taimanin who were captured by the enemy were not defeated because they were too weak. They were mostly caught due to underestimating the enemy, leading to negligence, or accidentally falling into the enemy's traps, resulting in them being subjected to various sexual torture plays.
Although it is unclear whether the Taimanin of this world will have the same plot developments as those adult works, it is necessary to remind Auntie Shiranui a few more times.
"Yuu-chan shouldn't ask about the specific content and location of the mission; these are confidential matters."
"Anyway, don't worry about me and Yukikaze. That's it, I have to go prepare."
As Shiranui Mizuki's voice fell, the phone hung up.
"Forget it, I'd better secretly follow them to see the situation, just in case something really happens!"
Yuu Mizuki thought to himself, and a semi-transparent light screen suddenly appeared before his eyes.
Name: Yuu Mizuki (Character Template: Uchiha Izuna, Breakthrough to Kage Level opens second character) Age: 17 Level: 61 (Elite Chunin) 2545/85000 Bloodline Limit: Sharingan (Pupil Power 965/1000)+ Skills: Three Basic Jutsu, Fire Style: Fireball Jutsu, Sly Mind Affect Technique, Shadow Clone Jutsu... Items: Soldier Pills *46, Explosive Tags *99, Shuriken *99, Antidote *9 Current Accepted Mission: None Available Missions: A-Rank: Subjugate Fallen Demons, A-Rank: Destroy Monster Stronghold, B-Rank: True Ninja, B-Rank: Monster Slayer...
Looking at the somewhat simple panel in front of him, the corners of Yuu Mizuki's mouth rose slightly.
This is the cheat he obtained after traveling to this world, the manifestation of the Naruto mobile game he was playing before he transmigrated.
This cheat system was only officially opened more than a year ago after he entered high school.
Spending more than a year to get his level barely to the Elite Chunin level can be considered reluctantly having some strength.
Yuu Mizuki estimated that his current strength should be about the same as Sasuke during the Chunin Exams, maybe slightly stronger, but there is obviously a clear gap compared to true powerhouses.
It's a pity that the character he used before traveling was Uchiha Izuna. If it were a character template like Madara or Hashirama, his strength would likely be even greater now!
Closing the character attribute panel, Yuu Mizuki activated the map function in the game system with a thought.
A map depicting the entire city of Tokyo and the routes of surrounding cities instantly appeared before his eyes. Yuu Mizuki, as well as two small dots flashing with green light representing the same faction, appeared on both sides of the map respectively.
Through the system's map function, he can determine the location of Auntie Shiranui and Yukikaze, and check their current status through the map. Yuu Mizuki temporarily doesn't need to worry about them encountering any danger.
They probably haven't encountered monsters and started fighting yet.
Yuu Mizuki rushed home as fast as he could, threw his school bag on the sofa, took off his Seishin Academy uniform, and changed into a set of red armor with a fan symbol similar to Uchiha Madara's style. With a long sword at his waist and a mask covering half of his face, revealing only a pair of crimson eyes, he went out.
Around eight o'clock in the evening, Yuu Mizuki noticed that the two small green dots representing Shiranui and Yukikaze on the map began to move. He immediately used the Body Flicker Technique (Shunshin no Jutsu) to shuttle through the streets of the city. In just under ten minutes, he followed closely behind Mother Shiranui and Yukikaze and arrived at the destination!
It was an abandoned hospital in Chiba City. Even standing outside, it gave people a gloomy feeling.
Looking at the abandoned hospital in front of him, the three black tomoe in Yuu Mizuki's eyes slowly rotated.
"Is this the location where Yukikaze is performing the mission this time?"
Yuu Mizuki looked at the abandoned hospital in front of him, and after observing it carefully, he took a step forward, ready to go in and find out!
However, what Yuu Mizuki didn't expect was that he had just walked forward a few steps, not even close to the hospital gate, when he suddenly felt a sense of crisis.
With the insight and dynamic vision of the three-tomoe Sharingan, even in such a dimly lit night, he still saw a figure rushing out from the small woods next to the abandoned hospital at a very fast speed, holding a huge axe with both hands and slashing fiercely at him.
"Boom~!"
Facing such a heavy and powerful attack, even Yuu Mizuki, who was quite confident in his own strength, did not dare to take it head-on.
After all, the initial character he activated with his cheat was Uchiha Izuna, not Senju Hashirama or Tsunade; in terms of strength, he couldn't compare to Hashirama and Tsunade who possessed monstrous strength.
Fortunately, Yuu Mizuki discovered it in time and used the Body Flicker Technique to dodge the axe slashing at him by a hair's breadth.
The giant axe landed where Yuu Mizuki had stood before, smashing a large pit at least a few dozen centimeters deep, instantly sending dust flying!
"You sneaking guy, hiding your head and showing your tail... what is your purpose in secretly following us here?"
"Dressed like that, and possessing a power completely different from the Taimanin particles of us Taimanin and the demonic power of the demons—a power never seen before—who exactly are you?"
Seeing that Mizuki dodged the attack in time, the girl holding the giant axe did not take the opportunity to continue attacking. Instead, she blocked Yuu Mizuki's path and questioned him loudly.
She was tall and buxom, wearing a white skin-tight battle suit and sporting a high ponytail, looking quite valiant.
Looking at the girl blocking him, Yuu Mizuki frowned slightly.
He felt a hint of displeasure at the other party's behavior of attacking him directly without distinguishing right from wrong.
However, from the girl's outfit, he could roughly infer that she should also be a member of the Taimanin. And looking at this somewhat familiar appearance, she was probably the heroine of a certain Taimanin eroge work he had seen before transmigrating.
Yuu Mizuki didn't want to be enemies with the girl in front of him. After all, according to the location shown on the map, Mother Shiranui and Yukikaze should be right here.
After thinking for a moment, Yuu Mizuki raised his hand and slowly removed the black mask covering half of his face, deciding to confess his identity directly.
"My name is Yuu Mizuki. I am not your enemy."
"I came here just to find someone, and by the way, I can also help you eliminate the monsters hiding in this abandoned hospital."
As Yuu Mizuki took off his mask and voluntarily revealed his identity, Yatsu Murasaki, standing in front of him, muttered a few words in a low voice. In her heart, she vaguely had some guesses about Yuu Mizuki's identity.
Suddenly, a cry of surprise came from a corner shrouded in shadows beside the abandoned hospital not far away.
"How could it be Little Yuu?"
"Is this mysterious guy actually Onii-chan?"
Accompanied by a few voices full of surprise and astonishment, three more figures, also wearing tight battle suits, walked out from the shadowed corner and the woods one after another.
Compared to the somewhat unfamiliar Yatsu Murasaki blocking him, the people who appeared at this time were all extremely familiar to Yuu Mizuki.
The first person he saw after traveling to this world, Auntie Shiranui who took in his homeless self back then, along with his stepsister Yukikaze, and his childhood playmate and childhood friend, Akiyama Rinko.
Yuu Mizuki's gaze swept over the bodies of the few people, pausing for a few seconds on the chests of Mother Shiranui, Rinko, and Yukikaze.
Auntie Shiranui's figure was very voluptuous and had the charm of a mature woman; Yuu Mizuki had realized this for a long time. Rinko hadn't been seen for a while, and she seemed to have developed to be even more mature.
As for Yukikaze, judging from her figure alone, it was really hard to connect her with a sixteen-year-old high school girl. She was obviously Shiranui's biological daughter, but it seemed she hadn't inherited Shiranui's excellent genes at all, had she? (Note: Implying she is petite/flat compared to the mother, or conversely, surprisingly stacked depending on specific canon interpretation, but usually Yukikaze is the smaller/pettier one in contrast to Shiranui).
"Yuu-chan, what is going on?"
"Leaving aside your outfit for now, how do you possess such power, and what kind of power is it?"
Just as Yuu was admiring the graceful and seductive figures of Mother Shiranui and Rinko set off by their tight battle suits, a sudden voice interrupted his thoughts.