Pretty sure she's 18, but she's less than 5 foot, LMAO.

Oh she's 18, she just got the short end of the stick, literally

Lily is also canonically racist so... The Andersons do their best to distance themselves from her side of the family, they don't want the reputation and image of their company to be put in a bad light. They're trying to show her the errors of her ways though. NASA: https://www.pixiv.net/en/users/65784846

Canonically perfect you say?