Evolve from Slime

This is a boy who travels to another world and transforms into a slime. The story of a contracted girl who takes the form of a slime and leads the girl to the top of the world. The introduction is incompetent, please read the text. The first world the protagonist goes to is the main world, and the other worlds are copies. Now you have entered the first copy, Devil's High School DXD During the day on the 1st, there may be something going on, and the update is not very powerful. If the boss likes it, you can keep it first, and then slaughter it when it is fat. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.