Does he come to the other world in different times? Like the 1st first meeting with Kyara, then 2nd to the other girl, and 3rd to Kyara again but in much later timeline. It's obvious by the way Kyara (I assume Mu is Kyara older version) is talking about things and it seems MC told Kyara to not tell it to him if ever he got back in that certain timeline.
Does he come to the other world in different times? Like the 1st first meeting with Kyara, then 2nd to the other girl, and 3rd to Kyara again but in much later timeline. It's obvious by the way Kyara (I assume Mu is Kyara older version) is talking about things and it seems MC told Kyara to not tell it to him if ever he got back in that certain timeline.