Just with this, I think the hint is that its あたし・と・ that helps give it away as a name, even if you cant read it.
I’ll add, there is no way to actually learn kanji names other than just suffering though because the Japanese just mix and match kanji they like or use obscure readings to make them fit.
At first I was so sure that it was a decoration that my brain just do everything in his power to make me think that. I missed soooo much hints. I should never try to guess what is coming.