Rakuen no Shoutaijou

Hero is chosen by the gods as a humanity representative and thrown to another world with the only farewell words of "Have fun!".

Since there's no purpose given all we can do is meet girls, accept their requests, fulfill them and get CG reward. There's the need to move a lot through the maze-like locations. In the prologue it's mentioned that we also get a map, but actually there is none! Game is mostly about finding items and applying them at the right spots to progress.