Sea colored diary (1st volume 1)

Publisher: Shueisha
Author: Eri Himekawa, Eri Katami, Miyu
Size: 112mm x 174mm
Number of books: 1
Language: Japanese
Category: Girl manga, manga
Latest release date: 2022-12-23

Synopsis:
Love and dreams start to move in this beautiful city of the sea
―― Yuya is 13 years old, helping the boarding house run by his mother.
One day, the twin idol unit "Tatsubana brothers" has moved there, and I know that it is actually the five children-!?!?
The excitement every day begins with a nice house on the seaside