Plot concept: The property follows Kōta Hasegawa, a high school boy that loves the yellow Pom Pom Purin dog.
Together, Kōta, Yū, Shunsuke Yoshino, Ryō Nishimiya, and Seiichiro Minamoto learn to accept their love of the characters instead of feeling embarrassed.
Yū tells Kōta that there’s nothing to be ashamed of for liking Sanrio’s cute characters.
By mere coincidence, he ends up attending the same school as Yū Mizuno, a boy who likes the bunny My Melody.