Takuto Hirukawa wakes up after having a dream of his ex-girlfriend. Later on as he and the rest of the Black Foxes are about to go on a mission, his ex Rina Tokuhara comes back and surprises them all but Hiro and Atsumu. Despite his mixed feelings towards her, he and Rina become partners once more. Contains mild lemon.

Mashiro Tsuneha comes to live with Yamato Kougami one day, but since Yamato isn't at home, she has to wait until he gets back. When he does come home, he is greeted by Mashiro. He soon finds outs that she is his future wife, and confronts Kunihiko Aikawa about the marriage.

A poem by Satoru Kamagari which defines his character and devious ways as a devil towards the women in his life. This takes place before my MSB/10DWMD crossover fanfic, "Taking Risks to Reach above Those Clouds."

The story starts off with Mirai Kageyama reminiscing about the day he met his first love, Kirie Kuroki. Three years have passed since then and Mirai is now a college student at Rentomi College. Kirie, on the other hand, is working at Rapunzel, an elder sister branch of Cinderella's. They soon meet again and a story filled with drama and romance begins for the two of them.

Yukari Minase comes to live with her cousin Ki Kotoharu one day, reuniting them for the first time in three months. The day after that, Allen arrives in Echo Village in pursuit of becoming a beautician. He and Yukari begin to work together and soon develop feelings for each other.

During a visit to Ikebukuro, Sora meets a famous model named Kasumi Sakurai. The following day, however, he finds out that Kasumi is the next client to his team and soon becomes her bodyguard. The story takes place in the year 4,524, over 2,500 years after the events of Keys to Immortal Beings and features two more heroines.