Ep. 1: Natsuna travels to Kumamoto to find her online friend Itsuki after their game shuts down.

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University student Natsuna Keyaki receives a message from online gaming friend Itsuki after a four-year communication gap. Shortly after the exchange, the game shuts down permanently, cutting off all contact. Determined to find him, Natsuna travels to Kumamoto Prefecture. A local woman assists her in reaching the address Itsuki provided years ago. Upon arrival, Natsuna discovers only an empty lot, destroyed by the 2016 earthquakes. The journey reveals the physical reality behind the digital connection, leaving Natsuna to confront the absence of the friend she sought to meet after such a long separation.