Tooyama Aki

Tsubaki's older cousin. Owner of the restaurant "Sunny and Lettuce" where the protagonist, Emi, and Konatsu work. She enjoys messing with young maidens in love. And Tsubaki, too. Things get annoying whenever she's involved. Tsubaki's parents asked her to keep an eye on her private life, and she wholeheartedly agreed. People around her think she's an alcoholic, since she's always drunk and all.