The Epic Summoning of Alien Beasts

The special physique of alien beasts makes it impossible for humans to kill them with weapons. They can only be killed by alien beasts. There are some special beasts in the world that need to be parasitic on humans to survive. When the compatibility reaches 20%, a person can sign a contract with the alien beast, become a summoner, and summon his own alien beast to fight. So an international organization called K. P (Kill and Protect) appeared in the world, specializing in cultivating and training summoners to fight against alien beasts. The higher the compatibility, the higher the summoning level. In theory, the summoner should improve the compatibility through physical exercise, mental manipulation and ingestion of exotic stones. But this year, a unique young man appeared, our protagonist Lin Changsheng. The compatibility between him and his strange beast is as high as 99.8%! This is almost impossible data... He was invited to join K. P as an exception and became an S-class summoner. There seems to be a deeper secret about the strange beast hidden in this young man...