Softy Rebirth

It was nearing the end of the pacifist route. Frisk confronted Asriel at the golden flowers in the very beginning. Asriel told them that couldn't go back with them. That his fate remains to be a flower for the rest of his days. He has no soul so he'd never be able to retain this body. Frisk felt so bad for them. Sure they may have done bad things as Flowey but that's not who they are anymore. Frisk thought about giving them their soul but that would mean they wouldn't exist either. Frisk is the monster ambassador. Monster's need the help of a human if they're going to be accepted and treated as an equal. So frisk decided to do something bold. They locked their hands around Asriel's wrists and simply transferred over some of their own determination. It wasn't much but it was enough for Asriel to live another hour. Frisk had a plan. Frisk took Asriel by the hand and together they ran all the way back to New Home. Asriel's clock only had another 10 minutes and Frisk couldn't donate more to him or they'd be in trouble. They ran all the way to the casket room. Where Asriel could simply take a soul and live again. Asriel tried with all of them but none of them wanted to accept him. There was someone else that wanted him more. Asriel's clock had only 4 minutes left. He felt that all hope was lost in that instance. Until... Frisk reached out their soul to him? Frisk didn't want to do this as it meant they would no longer exist but Chara didn't care and wanted their brother to be happy. Frisk was practically backseating in their own body. Chara took control of Frisk's words and actions and offered up their soul to him. Asriel took the soul and it accepted him.

Thus the creation of Dreemurr Reborn