The story typically follows a protagonist in his late 30s or early 40s, trapped in a "sexless marriage." His wife is beautiful but cold; intimacy has become a mechanical chore. Their friends, a seemingly perfect couple, propose the exchange as a "therapeutic experiment."

Below is a general guide to navigating the game’s mechanics and reaching different endings. Core Gameplay Mechanics Choice-Based Progression

Rika leaned against the railing, her eyes fixed on the distant lights of the valley. "But we’re here, aren't we? We all agreed that we wanted to find something we’ve lost. Or maybe find something we never had."

: A husband who finds himself seduced by his friend's wife during the trip.