Nigoru Hitomi de Nani wo Negau - Chapter 86

Qin Aofeng, a third-generation descendant of the great and prestigious Qin Family, was just as famous as his genius big brother Aotian, but was famed in Qin City for being the “Good-for-nothing Seventh Young Master.”

The compound is perilous, the clan is full of conflict. Before her rebirth, she dressed as a male, her birth a mystery. Because of her lack of talent, she was thought of as a worthless member of the clan. After her rebirth, she walked onto the path of a strong person, and lived on the continent like a fish in water.

Until one day at the capital city of the empire, the spear of the patriarch pointed to her young uncle that she always treasured, the “young male” that had always been undistinguished stood out, and astounded everyone, becoming a peerless genius. Ever since then, countless males and females became made for … …

The vast ancient forests, the deep bogs shrouded in back mist, the desolate and endless desert, the mountains and plains without any border where the magical beasts moved unhindered, this was a vast magical world.

- Description from Novelupdates

Based on the popular Vocaloid song .

Rin, a young angel (presumed female, but angels don’t have clear genders) falls in love with a young human girl, Miku. However, their love is considered taboo, and so, Rin makes a deal with the devil to be reborn as the human boy, Len, in order to be with Miku. However, their happiness together is short-lived, and even that soon ends in tragedy.

Before her rebirth, Song Ran lived a lone and miserable life. Her innocence and naiveness cost her fortune. Her family assets was wasted by the stepmother, and her man stolen by her very best friend. After she was reborn, having the scales fallen from her eyes, Song Ran learned from her mistakes. The first thing she needed to do was ride on the coattail of her man with a promissing future, Mr. Gu.

A chance to change, to challenge destiny, making dreams a reality, and live a legend! A regular man gains a system that allows him to turn into a fish!