Mi prometido yakuza, 4

During the summer vacation, Yoshino takes Kirishima to Osaka, his hometown, where he meets each of the Somei family members and Shoma, his lifelong friend. On her side, Kirishima is reconnecting with Nao, an ex-girlfriend of his, and the fact that he is in Osaka seems to have a lot to do with her. Soon they will find themselves in trouble and, little by little, danger looms over both of them.