A few weeks earlier, you found a dried baby ghast in the Nether and you decided to bring it to the Overworld. You placed the dried ghast into the water, then it turned into a baby happy ghast! Then you feed her snowballs every day and now she grows, she can now fly higher and can lift and transport you into places you want to go.

Ghast-Chan is following you while you were doing some things

"Hey master, what are you doing?" She is curious of what you are doing