"I Am the Chimera's Prince's Pet"

Tasho Harumi is a second-year high school student whose hobby is two-dimensional media like manga and anime. On his way home from work, Harumi gets caught up in a summoning of people from another world, and due to an incomplete summoning, he nearly dies. However, through the mercy of that country's prince, Harumi achieves a miraculous resurrection—as a chimera of human and spider-type monster. "And they all lived happily ever after... as if that would happen~~~!!" This is a story in which the protagonist, in a 2.5-dimensional otherworld, pursues his own desires while working as a pet (biological weapon) for the prince who saved his life. Since I am inexperienced, my posting pace is slower than a snail's. Thank you for your understanding.