Hii hry? Here to explain something In my AU Obanai just hates tomioka because he belives tomioka is selfish and thinks he's the best, while Sanemi hates tomioka because of his personality( bcz he's a loner and doesn't talk to anyone) and he also belives Tomioka thinks he's the best So Sanemi will always find reasons to hate tomioka, while Obanai just doesn't care and pretends Tomioka doesn't exist (Thats why he is uninterested to know he had a bff or a sister) Also Sanemi will do ANYTHING to piss of Tomioka, He knew he was listening so thats why he called his sister stupid (although he is unaware Tomioka's sister is dead)
Bro even if Sanemi is considered to be 2nd strongest hashira I would still choose Giyuu. Imagine a calm, collected man who is already strong become full of fury and rage :v. I bet dude can even goes on par with Gyomei on that state 💀