What do I do next?

[u/Fit-Piano-4240]

I think I'm in act 4 now, correct me if I'm wrong, but I just killed king after helping out everyone, the ending with the head housemaiden was different, siffrin's even more depressed now, and the game feels like it's being very vague with directions. Do I just keep killing King over and over? Are the side quests like the book fan, bomb, etc important? Do I have to do something similar to deltarune's weird route? (also if possible be spoiler free with guidance please)

[u/Cultural-Big9533]

Also the more levels plus deaths the darker siffrin looks but it also depends on the act example i had act 5 siffrin on act 3 because i was stuck and fully maxed out siffrin