RPG 時空物語 is a free-to-play role-playing game (RPG) available on Android. The game is developed by Taiyo Project and is set in a world threatened by the invasion of the evil army led by the demon king, Tesutarossa. The game's storyline revolves around the journey of King Bartos and his elite warriors to defeat the demon king and restore peace to the land.

The game features a party-based combat system where players can recruit up to twelve unique characters, each with their own set of skills and abilities. The game also adopts a "charge" system for skill activation and a "recovery" system for party healing.

Players can level up their party and individual characters through exploration and defeating enemies. The game's storyline and character dialogues are all original, providing players with a fully immersive experience.

Overall, RPG 時空物語 is a must-play for RPG and fantasy lovers who enjoy engaging storylines, dynamic character interactions, and challenging combat systems.