Wonderful Unrequited Love S01 E06 Episode 6

Nana, unhappy to be fighting with Taeko, asks Yutaka to help her make up. Keiko and Yutaka meet at a bar. Shumpei shows up, and then Taeko comes, and sees Keiko and Shumpei together. She hesitates, but eventually joins. Keiko and Taeko fight, so the boys suggest they go outside. Keiko finally gets through to Taeko. She says she is going to tell Shumpei about "Nana."