MTL - Full Marks Hidden Marriage - Chapter 5 Little Master found it.

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 –

The Aliens descended with hostility.In the face of the Alien invasion, humans were as weak as ants.So this was the apocalypse, the true apocalypse.But where there was invasion, there was resistance.For some people, this wasn't the end times, it was war.So this was war.The real war!

In the near future of South Korea, where everything is determined by aptitude tests, the protagonist Kang Moon-soo gets the job of a “Shaman”.“A shaman? What’s that? Do you earn a lot of money? Is it stable?”The profession of shaman has nothing in common with Moon-soo’s aspirations. He ends up becoming a freelance problem solver, a million light-years away from a stable life!Will Kang Moon-soo be able to sustain a livelihood as a shaman?

Kyo Mazuru traveled to the world of Bleach and landed in the forest of Menos Grande at the beginning.Picking up a asauchi left over from Shinigami's death, and starting with a sword, he spent hundred years in the forest of Menos Grande to survive, slashing countless hollows, and his slashing skills reached the peak, until one day, he met a man who claimed to be Mr. Aizen Sōsuke!Mr. Aizen couldn't bear him to live alone in Hueco Mundo, so he invited him out of there and brought him to Soul Society!After that, Kyo Mazuru's Shinigami career began!