“Alcafus” is a story about a mysterious Kemonomimi creature the MC, Tadashi met during his childhood one day. He had discovered that a girl with ears and a tail like a beast was falling down at a shrine, when checking if she was uninjured he gave her a candy ball that she seemed to really enjoy. After being pestered for a second one he gave her one and she repaid him with a kiss, soon after she disappeared. Ten years have passed since then, and when he heard her voice calling him, Tadashi visited the memorable shrine and strayed into a mysterious world.