While My Brother’s Still Young, I’ll Talk Him Out of Being My Big Brother

[Light novel + slice of life + laid-back + humorous + heartwarming]

“I'm a guy right now, but once the seal inside me is broken, I can turn into a cute little girl!”

That was how a chuunibyou boy conned his classmates back then.

But when he turned twenty, his younger sister drugged him, and he really did become a girl.

He'd never dreamed his words would come true, and his face was filled with anguish.

“Being a girl actually isn't so bad?”

Is this a distortion of human nature, or a collapse of morality?