Kuro to Kin no Akanai Kagi.

Tsubaki is a girl who loves making her younger sister's hair pretty every morning, but she doesn't think that kind of style suits herself! On the day of her High School Opening Ceremony, after she failed to be the top student (who usually makes the ceremony speech), she finds herself sitting next to the actual top student of the 1st years, the worst rude guy ever, Kyouta. Because of his saying bad things to her she purposely cuts his hair. Kyota requests that Tsubaki pay him back "with her body" but Tsubaki pays him back by fixing his hair and making it even shorter! Afterwards, Kyota unexpectedly kisses Tsubaki and swears he'll make her his woman.

With the arrival of summer and the school break, Chizuru, Kota, and the rest of their friends are lazily enjoying the warm weather. Chizuru flirts with Kota, Kota gets embarrassed, and Nozomu gets in the way. Tayura pines after Akane, Akane rebuffs Tayura, and a sexy good time ensues. The status quo isn't quite the same since the fox snared her prey, but the timeless boy-meets-girl tale lingers on.

Kiiko is your normal girl, besides her secret of being able to move objects with her mind. When a new student named Aaya moves in, Kiiko starts to develop feelings toward her. The two will eventually then start their romantic relationship. Although everything seems fine, Kiiko does not know that Aaya has another secret, a secret that could ruin Kiiko's feelings and trust for Aaya.

Kouta, a country boy who lives with his grandfather, is now moving to the city to attend high school. Changes come with his new home and new school, but nothing could have prepared the gentle young man for girls, specifically a bombshell fox spirit named Chizuru. As if her aggressive advances weren't enough, he also catches the attention of a frosty wolf spirit named Nozomu. Kouta is dragged into supernatural events as a result of his contact with the two girls, and his school life only gets more chaotic by the day. But with a girl who gives "foxy" new meaning and another howling after him, things are looking up for his love life.