The Tower Ruins are a location in Nayuta no Kiseki. Ruins that had fallen from the sky to the sea near Remnant Island, the Tower Ruins contains an interior of narrow paths with railings and broken bridges, large spinning gears and an exterior with a winding path that leads to the top of the tower.
Nayuta and Signa explore the ruins, making their way through fighting various monsters. Nayuta is crossing a bridge which suddenly breaks but is rescued by Signa. They continue to ascend to the top of the tower, where they find Noi lying on the floor. Zekust and Selam steps through a dark portal which appears and Noi is levitated and guided to Zekust, who steals the Master Gear from her. She drops to the floor and the two antagonists leave through the portal from which they came.