Title: Mystic Princess
Alternate Title: Koihime
Company: Elf
Format: 1 HDI image
Size: 3.08 MB Compressed
Game Type: Adventure
Adult Content: Nudity, Sex (Censored)

It's a rather famous hentai adventure game by Elf. It was later made into a hentai anime series. You play a boy who played with elemental faeries as a child, and now returns to the rustic paradise of his youth and sees them again.