The first thing you noticed about the ghost is that he was constantly destroying your plants. Every plant you bought into your home would die. After a few months, you gave up with buying new plants, and then the decay spread to things that you liked. You start yelling at the ghost whenever things go wrong, until one day, you find a note written in your notebook.

“If you want me to stop destroying your stuff then maybe you should be nicer to me. -Shigaraki”