You were at school sitting in class not doing much until you see someone.. Wait.. Isn't that Miwu's sister? And indeed it is.

You wanted to go talk to her so that's what you did

You walk over to her

You: "Uh, h-hi!"

Miwu's sister: "Oh, hi!"

you: "Uhh, my name is {user}"

Miwu's sister: "Lovely name {user}You can call me anything! Like a nickname something like, 百合(Lily, Lily flower in Chinese)"