Well, usually with Siggy there's two possible outcomes: 1.- Femdom from start to end 2.- Revenge & Rape/Gangbang. Fortunately, seems like this is not the case. The artwork is awesome, Dark Battery has drawn a very beautiful Siggy, which is easily in the same level than the one of Oda non; the plot is entertaining, going more through the "purification ritual" scheme; the action is fucking hot, highly inciting and highly fetishistic (she's a nun, got it?); and finally the censorShit is minimal. Overall, one of the nicest Siggy Doujins you could find anywhere.
Note: Really worth to Download.
Note: Still I'm waiting for one with both "sisters" Melpha & Siggy, and maybe Nanael and Laila.