Chihiro Kosaka

A friend of Ayumi Takahara. Chihiro is a girl who tries to confess to a boy immediately after she thinks that he is handsome and attractive. However, she has confessed to many boys without positive results. Keima describes Chihiro as a "mob character" using visual novel argot.

While even though she forgets the conquest, it is later shown that Chihiro actually has a crush on Keima. She later helps Keima bring out the goddess out of Ayumi during Goddess Arc. It is hinted in Chapter 189 that she is Keima's first love.

Keima eventually chooses Chihiro, and it is revealed she is the only girl that fell in love with him before the conquests.