After waking up in the body of the protagonist of Undertale, the newly named Frisk has some growing up to do. He wants to ensure everyone gets home safely, but how can he do that when he can't even SAVE himself.
*Definitely Spoilers Below*
The MC wakes up in frisks body but without the power of Determination. He will have to fight and outsmart Flowey who still has control over the timeline in order to get the good ending.
Used Worm CYOA V6 to come up with the basic premise of the story. The first part will almost be 100% Undertale.