ah ty for the kind words!!! here's a few tips:
to get started on natalie (sleepy moth), you have to find her draw-a-paw, give it to her, then ask about what she's drawing. if you've already done that, then patience is the key. but note that time only passes in purrgatory if you walk around!
for numa (anxious snail), you need to find the screwdriver, get into the vent, and explore what's inside.
for kyungsoon (hungry hyena), her storyline is a part of one of the others, so you don't have anything special.
i'll add these tips to the hints as well. hope that helps!!