Claire and Chane from Baccano. She's an assassin and he's a serial killer... and yet they're both good guys... well, good enough- neither kill without reason. They are so cute it hurts because they are both so socially awkward. Claire thinks that he controls reality, (literally, he's insane) is super deadly and a total romantic. Chane has been a puppet taught to kill her whole life and has just started making her own decisions and can't believe anyone could ever love her. I LOVE these two.