Yakuza Lover Graphic Novel Volume 10 (Mature)

Oya and Yuri must overcome one last obstacle if they hope to escape the Sh xi?'s underwater lair-Oya's older brother Mao. Just as Oya gains the upper hand, nostalgia for the better days with his estranged brother gets the best of him. Can Oya find it in himself to pull the trigger and end this threat once and for all?