After transmigrating into the Nasuverse, he becomes Shirou Emiya's brother, though they share neither father nor mother, and gains two names: Lin Su and Gaenit.
Lin Su: Armed with top-tier Heroic Spirit templates, all skills and Noble Phantasms at max level, he takes part in the Fifth Holy Grail War, outmaneuvers everyone in Fuyuki City, slays Zouken, battles the King of Knights, and destroys the Holy Grail.
Gaenit: A despicable, shameless, cunning, and short-tempered black dragon who kills a golden dragon, rebels against the dragon clan, and becomes Artoria's knight, fighting wars on her behalf.
This novel and its characters are entirely fictional. Any resemblance to real people or events is purely coincidental. Do not imitate.
When I saw the title, two words suddenly appeared in my mind, you know, doggy person