Ihoujin, Dungeon ni Moguru - Chapter 98: Honey And Elixir II

Crossing into the world of Naruto, and acquiring the One Piece system, with all the powers of the world of One Piece, swordsmanship, devil fruit, domineering.

-Do you think that your fire is very powerful? I have the burning fruit.

-Do you think that your thunder is very powerful? I have a thundering fruit.

-Do you think that your otter is very powerful? I have the frozen fruit.

-Did you said you want to die? Don’t worry, I also have a nickname: Death Doctor.

- Description from Novelupdates

Freshman orientation season.As a third-year senior, Xiao Fei regularly comes to the school gate to welcome new students.Unexpectedly, he accidentally runs into the new goddess teacher, Tang Yuxin, and discovers that she is actually the girl with whom he spent a night in a hotel a year ago.What surprises Xiao Fei even more is that Tang Yuxin is pregnant with his child.And not just one child—three!Thus, the two begin a shameless cohabitation life right under the eyes of the students…

He was a Martial Arts prodigy, a master of using poisons!He descended the mountain to search for his junior sister but unexpectedly became the School Beauty's bodyguard… From then on, a demon-like student was born! He pursued the School Beauty, took down bullies, and was revered as the supreme ruler of the city! He cultivated Ancient Martial Arts, annihilated formidable enemies, and swept across all directions to ascend to the Peak.