Reincarnated as a Slime but Got a Death Pen at the Beginning

I traveled through time and became a harmless slime. I wanted to farm and develop with peace of mind, but I picked up a Death Note at the beginning. From then on, the painting style of the monster forest completely changed. Goblins began to study graphology. Powerful monster lords invited me to be their guests one after another, for fear that I would accidentally write their names on them.