Escaping the Mystery Hotel - Chapter 43: Room 104, Cursed Room – ‘Preparatory Selective, Hotel High School’ (3)

An average man is reincarnated in the world of DxD! How do you survive in a world of battle-hungry monsters? With a cheat skill, of course! Devour the competition, becoming stronger with every fight! From the depths of the Familiar Forest, the Beast King will rise. (Harem, Gamer!SI)

Xia Yan passed through to the world of Bleach and became an eleven-year-old boy. He was rescued by Renji and Rukia in the Seireitei, and he was studying at Shin’ō Academy, and he was a student of the same class.
He is a top student of the Shin’ō Academy, and he is vying for strength by various teams. In the end, he has entered the first team of secret mobile maneuvers.
He will use punishment to kill every person who tries to threaten the martyrdom and protect his loved one.

- Description from Novelupdates

He is the heir of Di Hao Group; decisive, cold-blooded yet dotes on his wife a little too much.

Devil clan gained the ground and human beings were at the great risk of being wiped out. At this critical moment, six temples led the human race to guard their last land. A young man joined Knight Temple in order to save his mother and he has to go through all those traps and miracles on this tough journey. In a world where human’s six temples fought against devil clan’s 72 devil pillars, would he finally make it to the sealed divine throne?