Jiro Ninomiya had a problem. That is, his sister's friends Megu Kurotani and Erika Tenpaku are teasing him about something. Jiro, an adolescent boy, wants to touch their bouncy breasts right away, but if it's just a prank, his life could be in jeopardy, so he puts on a sorry face and tries his best to endure it. However, in reality, both Megu and Erika love Jiro, and it was a deliberate attempt to get his attention. Megu and Erika's temptations become more extreme as Jiro doesn't make any moves... A tactical love affair between two older sister friends who want him to touch her and a high school boy who they think they should never touch. Comedy!!

二ノ宮次郎には悩みがあった。それは、姉の友達である黒谷めぐと天白エリカが何かとHにからかってくること。思春期男子の次郎からすると、今すぐにでもふたりのたわわな胸を触りたいが、もしただの悪戯だったら人生が詰みかねないため、すました顔をしつつ必死に耐え続けていた。だが、実はめぐもエリカも次郎の事が大好きで、なんとか気を引こうとするが故の策だった。いっこうに手を出してこない次郎に、めぐとエリカの誘惑は過激になっていき……手を出してほしい姉友ふたりと絶対に手を出してはいけないと思っている男子高校生との駆け引きラブコメディ!!