Im trying to remember a bl manga where this guy got isekai into another world and when he was apart of this hero group he had a super cringey name bc he was in his teens then he went back to his world and then when he was an adult he got isekai again into that same world and tried to hide from his old hero group.. pls help me find this manga
so basically im looking for this one manga or anime where this highschool girl went back in time and saved her classmate whose the ml from dying. (Ik its very vague but thats all i remember )