I know this is late but part of me is just imagining an image of Columbina resting against Atsushi's full tiger form. One hand pressed into his fur with a small smile on her lips, cheek just a bit shy of actually touching his stomach.
Yes it’s his actual name bc whenever he was at the orphanage they didn’t know what his name was but he was the only one classified as a number till I’m guessing that the orphanage warden named him as what he died wasn’t as abusive or anything like what his parents did… they ate his body as a infant due to his ability and that’s why he’s alive