As a high school freshman, Mihara Shoma received an invitation to an exceptional festival that allowed him to socialize with whomever he desired. Atsushi, his long-lost childhood friend, reached out to him with a proposal to attend a one-of-a-kind event. Atsushi had identified a hidden treasure and proposed that they attend to catch up. Shoma was unable to resist and quickly traveled to the secluded mountain town where the Tanabata Nanayamatsuri festival was being held. Unfortunately, Atsushi was nowhere to be found. However, fate intervened for Shoma, and he encountered a girl named Shiori, who was searching for someone as well. Would Shoma be able to reconnect with Atsushi in the end?