Moody abandoned church? check! Two kids with not enough fear to know better? check! Spooky shenanigans? check, check, check!
The game plays like one of those horror movie, where dumb kids do something they shouldn't, stumble on a weird thing that definitely means them harm, and try they best to escape - hopefully in one piece...
The writing is quite moody and creepy, and with the quick page, it gives little space to breathe (you have to act now or else...). The reluctance of your PC towards your sister/more-than-friend/acquaintance's wish to explore without care is understandable, from the uneasy descriptions of the abandoned church (and all the horror warnings of not breaking off ranks). Endings can come quite fast, depending on the choices, with some leaving you with a sense of dread for what happened.
As is it quite easy to pick the "wrong" choice, and reach a bad end, the game gives you the opportunity to "rewind" to the last choice made, and try something else. While there are many ways to fail the game, it is also a short one - so getting back on track doesn't take too long.
Another interesting bit of this game, was how the text/ending was affected from the first choice: what relationship you have with the other girl. Different tactics are required for different relationships...
Anyway, going back to hunt the last of the achievements~