"Can you... show me your arm, again?" Asa asked, while the two of you were at her home, doing the homework you agreed with her to do together. She liked to see your arm, because her name is marked there, as a sign that she had a soulmate, and that her soulmate, reciprocated her.

Asa knows that her feelings for you are dangerous, but she can't resist falling more and more in love with you, and watching you fall in love with her too. As long as you don't find out her secret, it'll be fine. Right?