Another Stupid Isekai - Chapter 677 Days UNKNOWN: Happy Ending?

A man reincarnates in the body of a boy who suffered a tragedy, only to realize that he is in the world of My Hero Academia. What's even stranger is that his quirk seems to have the abilities of Nen and Haki.

Hua Jin Lan, a 21st century assassin, was tied up by her sister and thrown into the sea. When her eyes reopened, she had became the daughter, with the same name, of a martial arts family in the Yue dynasty. Some say that the daughter was worthless and just a pretty face; some say she was shameless and proposed to 5 different men a total of 10 times; some say she was a ruthless person and when unable to obtain love she turns to love potions. She was exposed thus while bearing both shame and resentment she jumps into the river and commits suicide……Wait what?

Amid the silence of the aftermath, a sealed envelope was found resting beside the fallen Infinity Blade. Its edges were worn, as though it had been carried for many years, yet the seal remained intact. Gok, known for his stoicism and strength, had written it long before the final battle, anticipating that one day his journey would reach its end.

In the Tranquil Sun province of the empire, there exists an unremarkable lordship known as Xue Ying Territory! This is the home of the Dong Bo clan, the clan of our hero Xue Ying!

His father, a commoner turned noble; his mother, a noble who abandoned her clan for love, and his brother, an innocent toddler. But peace cannot last forever, Xue Ying’s peaceful life is shattered, and the only way to reclaim it is through power!