reading this new webtoon & i find it quite interesting! the fl always meets the another 'her' from the parallel world in her dream and one day they agreed to exchange lives for a week but ended up doing more than what theyve agreed on so the fl is living in the parallel world now
jihun noticed that doeun cried earlier but he thought that she cried because she got lost so he told her, "if nuna gets lost again later, i'll find you first then too. so dont worry and dont cry."
father who always puts a lot of expectation on him that it became a huge burden and brother who bothers him for no reason and blames everything on him. the only good thing is that kwon seungha has a mother who loves him despite not being actually blood-related.
come to think of it, we only know that these two were doyoon and jieum during jieum's first life but...theres no other clue about which one was doyoon and which was jieum (she also lived as a guy during her prev lives so...)