Otogibanashi wa Awa to Kie

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...?

(Source: Gentosha Comics, translated)