Seven Senses of the Re'Union

In the popular MMORPG Union, a legendary party named Subaru formed from a circle of childhood friends and elementary schoolers, pushing the game beyond its limits with their various senses. However, an incident that caused a death led to Union's service ending and sent the group of childhood friends in separate directions. Six years later, a high schooler named Haruto logs into the new Reunion and reconnects with a single girl: Asahi—one of the old Subaru party members, and his childhood friend who should have died six years ago. Is she a digital ghost, or...?