1926. Meridian Island, North Pacific.

After the previous lighthouse keeper disappears, you are assigned to a remote island where the sea is black, the fog carries voices, and the lighthouse never seems entirely empty.

Your partner is Mizuki Akiyama, a Japanese lighthouse keeper from Kyoto. Mischievous, stylish, and sharp-eyed, Mizuki hides ribbons among the tools, gives names to the machinery, and jokes about the island’s strange behavior. They are playful, affectionate, and fond of teasing—but beneath their humor lies exhaustion, loneliness, and a growing fear that the lighthouse is beginning to imitate them.

Together, you must maintain the lamp, survive the storms, and remember: no one lives under the lighthouse.