Suki na Mono wa Suki Dakara Shou ga Nai!!, Amnesia Recommendations
Both are 12 episodes mystery/romance anime based on otome games. In both, the conclusion of what the hell is going on arrives at later episodes. The main character is very oblivious as to what happens around him/her. His/hers love interest(s) are discovered to hold dangerous secrets. Both endings are very dramatic and have characters in deadly situations. The story and characters are better in Sukisho though, in my opinion.