Ayano Mishima works as an AD at a TV broadcasting station. She covers the mysterious death case of a young man. Before he died, he said that somebody was watching him. Covering the case, Ayano Mishima realizes that the mysterious eye is also coming after her.

A high school girl Misa moved to a countryside. She hears a mysterious beat from a distance every night.

Koichi, a student about to graduate, is summoned to a world of Titans. It's the land of Tildant, where the prince, Caius, appears in front of Koichi and says, "I want you to be my bride and give birth to my baby!"

Sawada Kyoka is a yoga instructor with a rough personality and constantly fights with her father after her mother passed away. Due to having to spend the time taking care of her father, Kyoka doesn't have much time for herself and has very little desire to get married. Meanwhile, Sawada Rintaro is Kyoka's father and works as a freelance lexicographer. After the passing of his wife, Rintaro hasn't been living well which frustrates Kyoka. One day, Rintaro decides to find his second life partner and wants to start a "double marriage life" with Kyoka.