I'm looking for a specific manga but I can't remember it for the life of me. All I can recall is a specific scene in which a motorcycle gang asks for the MC's help since they think he is some super tough bad-ass but he really isn't, and the MC only does it because the leader of the gang is some hot chick. His pants fall down in the middle of the fight, and that's where my memory ends. I really enjoyed it but I can't find it for the life of me.