Overview This is a puzzle adventure game set in a near-future research facility. Control the protagonist, Sei, and help rescue the captive mermaid, Sui. There is no combat — progress the story by solving gimmicks and puzzles. Puzzles Classic escape-room-style mechanics such as finding items and using them elsewhere, Tile-swap puzzles and more, Simple resource management — Sui cannot stay on land for long. Some puzzles require a mermaid to solve. Guide Sui carefully through each area., Features Supports keyboard and controller input, Multiple endings depending on how you progress through the story