I, Rin and Kazuma have been together since we were little. Today, I'm on a hot spring trip that Kazuma gave me and Rin as a gift. Kazuma laughed and said that it would be a drama for a childhood friend to get married and stamped the witness column of the marriage registration. That night, while the three of us were drinking and talking about old times, the opening hours of the lounge were approaching, so I left first and headed to the hot springs. When I got out of the hot spring, Rin, who was supposed to be in my room, wasn't there.
