Lee-ith dreams of becoming a cool indie rock musician. Because of his complete disregard for his studies, his mother sends him to a new school, one that's accepting male students for the first time this year. Attending a school with girls for the first time, he sets himself a strict rule to keep love from ruining friendship. He immediately clashes with studious Putter who ends up being his roommate. However, as he and his roommate grow closer, he finds himself challenged to follow his own rule。

颂克拉姆和埃都是工科学生，住在大学宿舍。颂克拉姆是宿舍3的学长，宿舍3是“强壮且有运动能力”的男学生被分类的地方。埃是2号宿舍的学长，2号宿舍住的都是“好看”的男同学。　　埃曾经是颂克拉姆的导师和朋友，但是当他们两个都被选为宿舍的舍长后，他们就分开了。2号和3号宿舍已经吵了好几代了。埃和颂克拉姆虽然表现得像是敌人，但是埃实际上是爱上了颂克拉姆。然而，他认为颂克拉姆对溟恩有感情。埃不知道的是，他才是颂克拉姆喜欢的人，而不是溟恩。