The Strongest Guild Master Founded a Nation in a Week - Chapter 2 - Different World Transition

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

A mysterious force has descended upon Earth, giving birth to another terrifying civilization. At the age of eighteen, everyone is forcibly sent into the Horror Game World. While people struggle to survive, submerged in fear, Qin Nuo discovers a unique ability: by influencing the emotions of ghosts, he can earn rewards from the system. Moreover, with each completed mission, he can establish his own enterprises within the Horror World.Thus, Qin Nuo's journey begins:Working as a server at the Nether Springs Restaurant,Serving as the attending physician at the Death Hospital,Becoming a waiter at the Netherworld Hotel,Teaching at the Terror Academy...As Qin Nuo zealously completes one mission after another, he eventually realizes that he has become a formidable figure in the realm of ghosts.

“Chief, it’s bad; our people are injured! Hurry, take them to the Divine Tree!”“Chief, it’s bad; our people are on the brink of death, about to perish! Quick, to the Divine Tree!”“Chief, it’s bad; our people have just passed away! Quickly, to the Divine Tree, and do not let the body grow cold on the way!”Reincarnated as a frail locust tree, Ji Yang merely wished to bask in the sun each day, gaze upon the moon, and live a leisurely life.Yet, years later, as Ji Yang looked down upon all beings, he suddenly realized that this world lay upon his roots and within his shade.And that initial small clan, unbeknownst to him, had its name resound through the heavens!