In Archer's last moment during the Holy Grail War, he made a promise to Rin, to try his best. Not knowing if he was even capable of keeping up such a promise, while in the service of the Counter Force. Now sent to a new world to eliminate its rising threat, how will our favourite cynical hero deal with the people of this strange yet dark world?

The purity of love— And the depravity of lust. In this cruel, depraved world, which ideal will survive throughout the hearts of the people? In the darkness of an uncertain future… a star burns brightly within. The rebellion against a black fate shall begin... with the coming of the Wandering Knight.

After an accident with the Jeweled Sword, Shirou Emiya found himself in the continent of Selenus. Each country ready to wage war against the kingdom of Negramstia to stop its tyranny once and for all. With alliances being made, he is more willing to lend a hand against the effort and find a way to go back home. (Kuroinu 2 In'yoku ni Somaru Haitoku no Miyako, Futatabi )

Chaos and lawlessness plagued the country of Eostia. How will they be able to bring peace back? Well... this young man have saved the world once!