Who Told Him to Save Humanity?!

I transmigrated to Chaldea, but it was a parallel world's Chaldea. No Guda, no kouhai, and only Da Vinci as a Servant. After learning this, Su Yan decided to save the world. But after enduring countless hardships and crossing seven worlds, Su Yan was turned away by Human Order.

He had no idea why, so he turned to the Servants contracted to him: Tiamat, Kama, Koyanskaya...

"Why won't Human Order let me in?"

"How would I know?"

Human Order, which had only just awakened from its slumber: Who! Who on earth sent him to save Human Order!