orange (7 volumes pocket size)

On the first day of class, Naho receives a mysterious letter from someone claiming to be her future self, in which every single thing that is about to happen to her is predicted exactly. Additionally, the sender advises her not to carry out certain actions. Ignoring the advice, Naho invites the new boy who has just arrived from Tokyo, Kakeru, to hang out with her friends after school. But something terrible happens to Kakeru that day. Something that might not have happened if he had returned home earlier. Knowing this, Naho decides to start following the instructions she receives from a future world where Kakeru no longer exists. But facing the present without leaving room for regret turns out to be not as easy as it should be.

Includes postcard sheet and the first chapter of Astronaut in Spring.