Kagura↑Yun↓, then there's only one answer! Pledge your loyalty to you!
After Kagura Yun was bullied at school because his younger sister, Kagura Ai (mea), was hanging out with the shut-in Aqua, he spent half a year winning everyone over. Yukinoshita Yukino swore allegiance to Kagura Yun, hoping to become a hero like him.
This is the synopsis for Volume 2, The Wondrous Adventure of MeAqua. The main story is about growing together with Fubuki, family, and friends.
New readers, please start with Volume 2. Volume 1 was just practice writing.
This is a book about the author and protagonist growing together. If you can, compare the latest chapter with the first one each time a new chapter comes out. Even I think they were written by two different people.