this might have nsfw and abuse frisk when they enter are a child a 5 year old ,then when sans suddenly dissapers [cause underverse] ] time skips to reset time line #45 pacifist ending where frisk is all grown up shes 17 and sans reterns in time too soon celebrate the 18 birthday of frisk , till then frisk and sans can catch up and maybe fall in love .. and who knows whats up in thee future. also chara and asriel are remaid :D kris is there too but hes there younger sibling this takes place in the underground and the surfice