Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.
Natsugetsu, a first year high school student, and Fuyuya, a fifth year elementary school student, are childhood friends next to each other in an apartment building.
When I was little, they called me "Natsuki oni-chan" and I was cute. Now, Fuyuya is completely abandoned and voice change and growing up.
. But when Natsuki is weak, he notices and gently comforts me.
With such a grown-up Fuyuya, Natsuki is excited?
This book also includes a growth story of the two.