Nodoka manages to convince Kirin not to let her get in the way of having sex with Sensei. Both Kirin and Sensei feel strange about Nodoka's presence, but proceed. Nodoka comments throughout, but declines Kirin's suggestion that she join in somehow. Afterwards, Kirin thanks Sensei for helping her over how angry she was at her sister, and leaves. Nodoka says that she enjoyed observing them.