[DeepL Translation - needs review] Introduction to Volume 1: Masafumi Shizurai has no memory of more than a year and a half ago. Prone to memory lapses, he keeps a diary of his daily life, which he uses to search for his former lover, a man named "M". One day, he suddenly becomes friends with Nakagami, the master of his favorite coffee shop. As they search for "M" together, Shizarai becomes attracted to Nakagami and at the same time begins to think that he - Mamoru Nakagami - might be "M" hi...
