Morioh, 1999—a normally quiet and peaceful town has recently become a hotbed of strange activity. Jōtarō Kūjō, now a marine biologist, heads to the mysterious town to meet Jōsuke Higashikata….

Takahata Shun’s day at high school begins just as boring as ever, but it doesn’t end that way. He and his classmates find themselves forced to play children’s games with…