Ren, a sharp-witted cynic, has long dismissed love and human connection as pointless distractions, content in his solitary routine. But when a chance encounter with a mysterious girl thrusts him into a utopian-like future where love no longer exists, his carefully crafted stability crumbles. All Ren wants is to return to his monotonous yet reliable life, but the only way back is to team up with the mysterious girl, Mira Illiya—a clumsy yet idealistic dreamer determined to revive love in her future society that’s long since abandoned it.