I Fight the Holy Grail War in Runeterra

Roger, a 19-year-old college student, is an e-sports genius who likes to take orders to earn some living expenses in his free time. One night, he suddenly fell into a coma while placing orders. When he woke up, he found that he had traveled to Rune Continent! He was rescued by a mysterious boy, and then was involved in the Holy Grail War. What will happen to Roger next? Let's wait and see! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.