Didn't expect this random romcom eroge from 2006 to actually be phenomenal, but here we are. Dra†KoI (capital i) is a brief VN with a heartfelt love story which explores themes of fantasy, the ideal and romance while listening to an amazing soundtrack; at 3~4 hours long, it's a well paced and solidly written story you can finish in an evening, an experience I highly recommend to any VN fan.
(Game can be found on "Sabato Nabe -Nitro Amusment Disc-". Be sure to run in Japanese locale (not locale emulator), and the game crashes if you load from the main menu, so use the L key to load).