Series by 東宮 千子

Tamako is a sharp and strong-willed girl studying at a boarding school. Her uncle steals the money her parents left her, forcing her to withdraw. Before leaving, she confesses to gentle Katsura, but he says he cannot accept a normal relationship. While wandering afterward, she meets businessman Seiji, who offers financial help in exchange for future work. Cleaning Seiji's house reveals a family tie that complicates her feelings for Katsura.

Shieri Ichimura has horns on her head. She believes the secret is hidden from everyone. A classmate named Kouya discovers the horns despite her efforts. He is also the twin brother of a very popular actor. Her school romance begins with a private physical secret and the boy who unexpectedly sees it.

Platinum prepares to debut at a major fashion show watched by the world. Akari is asked to teach walking that will make the performers look stylish and stand out. The work places her close to the pressure of show business. Her path begins overlapping with Jin through the same project. The early focus is on ambition, performance, and finding a place in entertainment.

Sei wants to meet someone across time. In 1998, a sudden door appears before him and leads to a mysterious man named Hiroshi. The man says the place beyond the door is the year 2004. Sei's tendency to slip through time draws the two into living together. Their shared life begins around time travel, music, and an unexpected connection.