Blue Bird

A story that examines the relationships and bonds that seven random people share with one another and how that bond develops over the course of the series. Beginning with a meeting of six of them. The seven main characters are named after the colours of the rainbow.

An art history lecturer, unfairly disgraced for refusing to certify a suspicious painting, endeavors to set the record straight by exploring the mystery of a 16th-century artist using a diary that may lead her to the genuine painting.

Grey Rainbow tells the love story of Nuer and Porsche. Nuer is the son of the owner of an elephant camp while Porsche is a law student. In university, they were dormitory roommates and close friends, each fighting against the feelings that one has for the other.

One day, Naho Takamiya receives a letter written to herself from ten years in the future. As Naho reads on, the letter recites the exact events of the day, including the transfer of a new student into her class named Kakeru Naruse. The Naho from ten years later repeatedly states that she has many regrets, and she wants to fix these by making sure the Naho from the past can make the right decisions—especially regarding Kakeru. What's more shocking is that she discovers that ten years later, Kakeru will no longer be with them. Future Naho asks her to watch over him closely.