Jun has decided not to get involved with either of them for the time being. A friend of Rumi asks Jun to help her with studying. They try to keep this a secret from Naori since she is a stunningly beautiful model.

Jun decides to help Shiena with her studies, which drives Naori crazy. Rumi, on the other hand, seems unusually indifferent about it. However, for Naori, it's clear that she needs to keep an eye on them. So, she quickly invites herself along.

It's time for the twins' birthday, with well wishes and gifts coming from various people, even unexpected ones!

The negotiations over the empty clubroom begin, while Rumi's situation with Mizumi grows more complicated by the second.