My Boss and I Traveled to the Three Kingdoms and It Turned Out to Be a Test

I am a standard gamer. One day I was suddenly kidnapped and taken to a strange basement. I also met 9 legendary boss-level figures there. It turned out that I was going to be transported to the Three Kingdoms with them to take an exam. There is only one assessment content, and that is who can unify the three countries and change history by relying on their own abilities. There is only one unified winner. Can I, an ordinary otaku, really be able to defeat this big boss in the end and stand at the top of the Three Kingdoms? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.