Immortal - Volume 1 Chapter 13

When other players are still stalking for how to recruit the Three Kingdoms, Qin Xiaobai already has such super-historical names as Baiqi, Hanxin, Chen Qingzhi, Yue Wumu and Zheng Chenggong.

When other players face the heavy internal affairs to help the hand, Qin Xiaobai already has the historical names of Shangfeng, Xiao He, Di Renjie, Wang Anshi, Zhang Juzheng and so on.

Trembling players, see how I crush you with the All-Star Deluxe lineup. A little white screamed.
“Oh… wait, it looks a bit wrong, for the hair I brushed out some sister paper…”

妲 褒姒, 褒姒, Zhao Feiyan, Taiping, 婉儿, Wu Mei Niang…, said where the good names are going.
A little white surrounded by sister paper sighed: “I don’t want to bring my sister to the Three Kingdoms.”

- Description from Uukanshu translation

This legend tells the tale of the protagonist, Kuroki summoned to protect the demon king from the hero.

Kuroki, unbeknownst to him, suddenly came to another world. He was summoned by the demon king, Modes. The territory which the demon king overrules was in the midst of being destroyed because of the hero. He had no choice but to bow before Kuroki.

“Please save us, Savior Dono!”

Kuroki nodded, deciding to save the demon king due to an unexpected turn of event.

He rose from hardship, but was felled by betrayal. From then on, one man, one gun; treads the path between Evernight and Daybreak to became a legend. No matter what was destined to be his fate, he intends to become the ruler who dictates.