Masa is still a gentle giant and cares very deeply about his "bon" (Kai) although he has a hard time showing it or figuring out exactly how he cares about the young boy. This brings up all kinds of interesting questions since they're about 20 years apart in age Masa is constantly torn between his impulse to protect and give Kai the never-ending amount of attention he needs and fulfilling his honorable duties as the second in command of a yakuza syndicate.

(Source: Madame D's BishieCons!)