スグルくんファイト! (Suguru-kun Fight!)

Argumento

When Yu, an ordinary high school student, comes home as usual, he bumps into his sister's friend, Noriyuki!

Yu decides at a glance that the big and cool Noriyuki is the type he doesn't like, and runs away from the scene, but for some reason, Noriyuki starts to pick on Yu persistently...!?