～Until then, we were just childhood friends～ My childhood friend Noa is staying at my house because her parents are going on a trip. She innocently says, "Let's take a bath together!" but her boobs are bigger than I imagined and I can't resist! Noa also sees my erect penis and we're both very conscious of each other... Finally, we're alone... and the two of us can't resist and get together! The two of us skip school and have sex all night! And even when our parents come home, we have sex in the bath as a tradition!