This anime can be very twisty a little confusing has far more plot then the average fan service anime and far less fan service then you might expect. I can think of only one maybe two episodes that warrant the mild nudity rating. It’s a bit violent but I have seen far worse and almost no language. Frankly in the current era even uncensored there are probably more tv 14 shows that fit the same billing. The is one of the best plots I have seen in this genre and part of the reason the fan service is lacking is due to the fact thatthere is so much plot going on with just one or two filler episodes out of 24. I would say the show really starts to get interesting at episode 17 however there is large amount of plot leading up to that point so make sure you watch the whole thing. If you like a show with a relatively tight knit plot with a few twists and a small dose of fan service this show is perfect for you.