Takahashi Ryu was a normal middle school student living with his parents in Tokyo Japan, he was a cheerful boy who loves going out on adventure. But a sudden tragic accident happen that causes his trauma and now has a fear of going out , he was forced to home school for the sake of his safety. Four years later, Ryu who will soon to be a highschool student was still afraid of going out his psychiatrist advised him to try to go school this time to try once more and to see how it with would go. While trying once again Ryu met different kinds of people inside the school, although there was one student who catches his attention, a boy name Nakamura Shun has appeared on his life. Will Nakamura Shun be able to help Takahashi Ryu overcome his trauma or will make it worse??