The manager of the ramen store, Oka, and the son of a Yakuza family, Akemi, have been sex-friends since they graduated high school.
The two won't admit that they have feelings for each other as Oka drags the memories of his first love and Akemi keeps people at a distance because of his family.
Knowing that this fleeting relationship has to end one day, what will become of these two when Oka's first love visits his ramen shop...?
ラーメン屋店長の丘は、高校時代からの親友・朱巳と長年セフレ関係を続けている。お互い好き合う気持ちは確かなはずなのに、丘は不完全燃焼だった初恋の思い出を引きずり、朱巳はヤクザの息子という立場からか人を寄せ付けず、孤独の影をまとって生きている。こんな関係いつかは終わる、終わらせなきゃ――そう思っていた矢先、ラーメン屋に丘の初恋に関わる男・駿河が現れて…!? 共依存めいた二人の両片想いアダルト・ラブ。