[Machine Translation] Nanasei, a high school student, has a dream that he has always been looking at. It is a memory of his previous life, where he was a knight in the service of a master who was more important to him than anything else. Nanahoshi doubts whether his memory is real, but one day, his master Leo appears in front of him as Raiou, a transfer student. Raiho, too, still has his memories, and he is innocently happy to see Nanasei again. However, he forgot the most important thing. For Nanasei, Raiho was someone he never wanted to meet...