doukyuusei another world

Doukyuusei Another World is an online gatcha eroge developed by DMM Games released for Windows

Plot
Visual novels Doukyuusei and Kakyuusei return in an online game. The protagonists holds a "Future Diary" as upon the player's action, fiddles around with fate and picking up girls of choosing

This tag implicates doukyuusei_(series) (learn more).