Shy Satsuki Shinohara's plan for a big high school debut are almost ruined by a pervert on the train, but she's saved by none other than the gangster" student in her class, Yamaguchi-kun. He's already got a bad rap with the other students, and though Satsuki tries to approach him, he seems to always weasel out of her grasp. But she's not one to let a challenge daunt her, and she's out to prove that Yamaguchi-kun is so much more than he's cracked up to be."
“When I see you being close with Ishizaki-kun, it drives me nuts!” Seeing Yamaguchi-kun jealous, Satsuki found him so cute. Now that Satsuki has feelings for Yamaguchi-kun, her heart won’t stop pounding on the field trip, at Yamaguchi-kun's house, and during summer vacation! It’s a high school love story about a tough-looking boy and a serious girl?