[New] Big Brother Transformation Plan!

[Everyday Life] [Lighthearted] [Male True Mahiro] [No Gender Swap]

This book is also titled Just Be My Big Brother! If you'd rather read a story where Mahiro changes gender, that book will be your "dead end." Go check out the one next door instead.

Minori: "Big brother is so cute as a little sister!"

Matsuri Oyama: "Becoming a girl is still better than being a shut-in for the rest of my life."

Chitose Azuma: "Mahiro is the perfect test subject!"

Is turning into a girl really the only way out for Mahiro?

Mio Hikawa: "I don't agree."

Everyone: "Who are you?"

What funny stories will unfold between the white-haired little princess Mahiro Oyama and Mio Hikawa, a cool-looking girl with a warm heart?

(An almost completely original story)