How Could the Fallen Saintess Possibly Be a Boy?

(Male-to-Female) (Irreversible Gender Change) (Transformative Yuri) (Action) (Yuri)

Ain, the last son of the Nocktis family of saints, is framed by the temple. His whole family is condemned as criminals, and he is left on the brink of death in a fire.

All Ain can do now is accept that he has become a white-haired saintess and keep living while carrying the truth behind his family's annihilation.

As for why he didn't die, we have to go back eight years.

Eight years ago, Ain's parents brought Alyssa home from an orphanage. They thought she'd be an ordinary playmate, but her magical talent was absurd. In just two years, she became a master mage.

This made things very difficult for Ain, who had become a saintess.

But as time went on, Ain came to understand that his little sister was the easiest one to handle.

The academy instructor who wants to study her body every day, the elf princess who wants to take her home, the silver dragon princess who wants to have children with her, and even the loli president of a certain country... None of them are easy to deal with.

"Ain~ Didn't you promise to let me take a blood sample today~?"

"Ain, have you thought about the two of us meeting each other's parents?"

"Y-you all stop talking! I was the one who saved her first!"

It seems my big brother is unexpectedly popular.

Ain lay on the bed with his clothes in disarray, silently conceding the point to his little sister.

"Mm... With this kind of relationship between us, whatever I do to you should be perfectly reasonable, right?"

"Now, try not to make a sound~"