Lol it has been forever that an MC is this openly admiring another guy's beautiful muscles & become buddies in less than three seconds. That's healthy & refreshing to read (I don't think I've met such a character like Hibiki before - It's usually just one muscle-freak narcissist side character who flaunts himself to everyone else ignoring him). That's also just boys in locker rooms, right? Girls do the same thing too with their clothes & makeup, why so jealous lolol?