A tool.

I look at Ritsu and I don't know if she knows about Ren meeting with Kyouko-chan but I believe she knows since she did say that both Ren and Ritsu never hide anything from each other. Ritsu walks past me and she approaches Aunt Lisa, she smiles and bows to her, Aunt Lisa unconsciously bows down to her as well and greets her. Ritsu immediately plays with Himawari-chan and talks about other things that are good enough to distract Aunt Lisa from scolding me.

Ritsu explains to Aunt Lisa how we met each other, Aunt Lisa didn't know that Ritsu is a regular in my restaurant and she just knows now after Ritsu tells her. Ritsu starts to tell lies about the reason why I'm here, she says that she needs my help because some guys are hitting on her recently and I did save her once back then in the restaurant. She says that it's her fault because she's using me and for some reason, it's very effective to lure Aunt Lisa's heart and accept her apology.