A dating sim / adventure game with 55 possible endings! In OASE, you control Prince of Zeiva Empire in his quest to find his dream date using a machine called Luv Luv Nitarou Dynamite. With it, you can summon girls from any place, time or space. The story begins in Mirage Castle, the largest castle in Zeiva Empire. Explore various locations and find the perfect dating spot! Follow stories of different characters and collect as many ending as you can. Perhaps the prince will manage to find true love?