Setting: Quasi-Hell, Female-only(!) Sinners, various Demons, and all that stuff.
Story: Blatant -- your character has lost his memory (except name) and tries to figure out what to do next.
Gameplay: The same as in any RPGMaker: talk to NPCs, kill enemies, loot items.
3D: Totally not my cup of tea; rather inconvenient to control.
CG: BDSM-oriented, pretty.
Combat: Dull and unbalanced. The first enemies crit 1/5 of your health, and they do it with every 4th attack. Replenishment is limited. Level progression is very slow. There are encounters where you can't win by design, even if you cheat the game for unlimited health.