The childhood friend is Yokozuna Sama! (Volume 1 whole volume)

Publisher: Takeshobo
Author: Haruko
Size: 128mm x 182mm
Number of books: 1
Language: Japanese
Category: Female manga, manga
Latest release date: 2017-01-25

Synopsis:
Ayako, who aims for the ideal marriage partner, Nagata, all of which aims for the ideal marriage partner, and is proceeding smoothly with that kind of hand. The longing marriage that I dreamed of was coming soon.
However, on the Shinkansen that happened to be unfortunate, the abominable childhood friend who knew the black history that should have been sealed! ! → Start living together for some reason! ? "Is it washed away?" But before the sweet temptation of Eiji (childhood friend )-?
Pounding life with the greed of reason and body (body)! !