Zombie Sister Strategy - Chapter 570: Yuan Tianxing Upgrades

In regards to the MMORPG Cross Reverie, Sakamoto Takuma boasted an overwhelming strength that was enough for him to be called the Demon King by the other players. One day, he gets summoned to another world with his appearance in the game. There, there are two people that insist “I am the real summon master.” Takuma gets slave-turning magic used for summoned beasts cast on him by the girls –

10 years searching for his lost sibling.

He became the villain in the possessed game, the rival of the main character, and the second seat.