It's been nearly a week since my sister suddenly disappeared. We lost our parents at a young age and grew up together in a facility. We were always inseparable—so why did she leave? Hono-ka. We were never supposed to be apart... For the past year, I've been searching for her. I've exhausted every possible lead, gathered every clue, and now I'm finally closing in on her whereabouts. The location is a small city in Kyushu. I hired a private investigation agency there to track her down. Soon, I truly believe I'll be able to see Hono-ka again.