[ Honestly, his ears are pretty fascinating, but even Tsuruno thinks it's probably rude to ask a total stranger if she can touch them. Especially when she'd just gone and asked him if he was a villain, but... well, the mask isn't something she thinks a typical civilian would wear. ]

I'm not sure what you mean by "my" definition... isn't a villain just someone who does terrible things and doesn't care about the people that get hurt?