Well, I suppose if you must play one of the countless "adventure" games for the PC-98 involving getting laid with Japanese school girls, this is a relatively good choice. The first in a series of games (the sequel would come out three years later in 1995) it mainly involves wandering about trying to encounter girls at the right place and right time. The interface is a little nicer than most, with an icon that changes with context as to the action to take when you hover it over the scenery. You use the right-click to bring up a option to travel around the small overworld.
There's a lot of pretty well drawn CG in this game, although it is censored in the "completely blank genitals" style that is somewhat unsettling.