Yuri, a first-year high school student, finally enrolls at Hibari Technical High School with the dream of someday building "a really cool bike." But on the very first day, she gets dragged into the fight of one of the four notorious second-year troublemakers, Roa Akamatsu...! What's more, Yuri seems to be hiding something...! A coming-of-age romance about a tomboy heroine who gets tangled up with four boys with sketchy reputations!!