: A gruesome discovery of dead, mangled fish is found within the complex, serving as an early omen of the violence to come.

The story of the first episode, titled "Optical Illusion," begins with the arrival of a group of migrant workers from the Middle East, led by a man named Kan. Their presence creates a sharp divide: while the open-hearted Kimi immediately tries to befriend the newcomers—specifically a girl her age named —many of the older residents, fueled by xenophobia and fear of the unknown, treat them with cold suspicion. The Unfolding Mystery

In the seaside town of Kurosaki, the (C Danchi) stands as a weathered relic of the Showa era, housing a dwindling community of elderly residents and one spirited young girl named Kimi .

The premiere ends on a chilling note, leaving Kimi and Yuri standing in the shadow of the building as the sun sets, unaware that they are at the center of a cosmic cycle that has been repeating for centuries.