Childhood friends Shota and Hiro are a loving couple who can't help but flirt in the classroom.

However, even after staying over every weekend, even after two years of dating, it's still a "clean relationship"...
!!
Shota, who was worried because Hiro was popular with girls, continued to run away from the sleepover, saying, "I'm the only one who wants to be with you...?"

幼なじみの翔太とひろは、教室でもついイチャイチャしてしまうほどの相思相愛カップル。

しかし毎週末お泊まりをしても、付き合って2年以上経っても、未だに”清いお付き合い”…!!
本来であればエッチに興味津々な年頃のはずなのに、何かがおかしい。
ひろが女子にモテることもあって不安になった翔太は、「オレばっかりシたがってる…？」とお泊まりから逃げ続けてしまい…!?