Once every few decades, the gate to a lost city with untold treasure is opened for a limited time. Adventurer Ruka has come to the ruins of this city to see what he can see. But there is a condition: the gate can only be traversed by a young girl.

Overview: You play as Feinne a half elf half human girl which can transform into a more powerful version of herself (she goes blonde). The game has many routes available. You can also shape her body to your liking while playing.