Lol true. Everyone is basically wolf's bitch the entire game.
Thi, I think the ship is based on their personality. Look at wolf for example, a common view people have on him is that he's obedient and doesn't talk much. Neither does he really question orders.
he was basically raised all his life as a weapon and a servant. To obey orders and listen to other people. A more submissive role. He rarely has his own opinions on things and his whole motive in life is his royalty to someone else and not a personal goal.
Now take Genichiro on the other hard. He's almost a fucking prince, rised with pride and a lot of expectations. Everyone respects and fears him which filled his ego. Pretty intimidating and borderline scary.
Basically a dom role.
And yes i know being dom doesn't mean you have to top. Same thing for sub.
But it fucking helps desu.
Think about it this way. Genichiro KNOWS wolf is stronger than him. And it drives him fucking nuts That -a kid who was raised in shitty environment with a father who barely took care of him- would simply surpass him.
Plus Genichiro is stronger physically speaking. Taller and larger. he is everything more than wolf and yet wolf managed to best him a lot of times.
Think about the rage, hatred and envy. Self loathing disguised as anger. When someone like this beats you.
Ofc humiliating him and taking revenge would be the priority on your list. And what better way to humiliate someone than sexually. To order wolf to shut the fuck up and just take him since he is still his lord after all. (1/2)