I keep searching for a story I found online, but I can't find it. It was a free published story (episodic) about man trapped in a time loop, with loop starting with his sister doing some mischief to him and then him leaving for some kind of university. He then joined forces with arachnid-like creatures under the university and helped then retain their memories after each loop. There were also some other time traveling man, which was trying to succeed in escaping or something. The protagonist keep concealing that he too is traveling, but in the end they joined forces and found out that they are in some kind of simulated loop, separated from the real one and that they must escape or they will be destroyed with it.