Jellyfish Restaurant

In the story, the protagonist Yōtarō Misaki (played by Customi-Z's Goro Kurihara) finds himself lying on the beach one day. He is picked up by Arashi, who manages a restaurant called Kurage no Shokudō. When asked who he is, the protagonist tells a lie that he lost his memory — but he remembers everything, including the fact that his twin brother died.