Manga written by Mangaka Kotobuki (琴吹):
https://twitter.com/Kotobuki0T
Onii-chan Is Done For! - Highschool ONIMAI (Doujinshi)
Without being able to return to being a man, Mahiro Oyama stayed as a girl since middle school and now has become a beautiful high-schooler who gets completely dominated by his first friend since the transformation, Momiji Hozuki, who has gotten really tall and became popular with the girls in their school.
Chapter 126
5 months ago
Romance
Girls Love
Slice of Life