"Land of Orchid: A Girl's Promise" features a cute art style and offers dozens of game endings, with Japanese voice actors providing in-game voices and singing theme songs, allowing players to enjoy the fun of taking care of a memory-less girl. The game's story describes the intense struggle between humans and an alien race. The alien invaders utterly destroyed the centuries-old legacy of the capital city of Lan Island. In the end, people sent out the "Counterattack Army" organized by the protagonist Shiro to penetrate deep into enemy territory and attempt to destroy the entity controlling the aliens. Although Shiro was close to completing his mission, he didn't have time to evacuate and was surrounded by the enemy. He finally escaped to the ruined mountaintop shrine where Shiro met a mysterious girl named Chiria who possessed incredible powers. The protagonist witnessed this girl using her power to bring down the "Rain of Light" from the sky, extinguishing the flames of war and bringing peace. Unexpectedly, after the war ended and Shiro brought her back to the city, Chiria had forgotten everything that happened before that day. Thus began her new memories as her life started anew with their shared lives opening a new chapter. In the game "Land of Orchid: A Girl's Promise," players have four years to take care of Chiria, helping her become an excellent young lady. Besides studying, working, and traveling, players must also take on the responsibility of repairing the royal city and local facilities. Chiria will have the opportunity to become a sage, an explorer, a pirate, or even an evil element, all depending on the player's decisions.