Maybe one day (Nagisa x Karma)

Nagisa Shiota is a new student at Kunugigaoka Junior High School and he meets a girl name Kaede Kayano. They were childhood friends until Nagisa's mum made him move. Nagisa also isn't the only new student, his little sister Luna was there and things get interesting when the class mates found out that they are both gay. Nagisa had a crush on a boy named Karma Akabane how is also in love with Nagisa, Luna is in love with Kaede and Kaede is also in love with Luna. One day Luna thought that it was a good idea to take her hole class to one of her family's vacation homes in french but will it turn from being one of Nagisa's and Luna's best day of there life to the worst day of there life? Will Luna and Kaede start dating? Will Nagisa and Karma start dating as well?