Naruto System in One Piece - Chapter 5

As the head disciple of the number one sect in the world, Luo Jianqing had a brilliant reputation. He was the most respected senior brother of his junior brothers and sisters: the last disciple of the cultivation world’s number one cultivator, Luo Jianqing greatly respected his master’s teachings, not crossing his limits by even half a step.

Afterwards…… he was stabbed to death just like that by the main character with his sword. His master’s sword.
Luo Jianqing: “……”
The heavens wants me dead, yet I refuse to die! See if the will of the heavens is more fearsome, or if the will of my sword is more stubborn!

Wu Yin: “Jianqing, I have something to say to you.”
Luo Jianqing: “Master, I also have something to say to you.”
Wu Yin: “… you speak first?”
Luo Jianqing: “You speak first.”
Wu Yin: “I like you.” / Luo Jianqing: “I want to top you.”
Wu Yin: “……”

- Description from Novelupdates

A side story series featuring the girls of Kyoukai Senjou no Horizon.

Demons are lurking, and there are thousands of races.

If you don’t pay attention, you will eat the weak.

But all this seems to have nothing to do with Li Dan, because as long as he is self-disciplined, he can get corresponding rewards and become perfect and invincible!

“Congratulations to the host for insisting on exercising every day and obtaining a top-level body forging exercise.”

“Congratulations to the host for insisting on basking in the sun every day and getting a top shield.”

“Congratulations to the host for insisting on playing ball every day and obtaining the full-level alchemy talent.”

Crowd: Why does he not do his work every day, and his cultivation keeps rising?

“Ding: Release a new self-discipline task, insist on confessing the beautiful women in the sect for a month, and reward a mysterious talent.”

Li Dan: “Everyone is busy first, I have something to do, so I will leave first, senior sisters, your Dandan is here-“

- Description from novelbuddy