The four teenagers left the academy to find the truth and solve the mystery of their births. They experience all kinds of difficulties and dangers and finally grow into men of honor.

Four teenagers who left the school and entered the arena for the first time, went through all kinds of difficulties and dangers in order to find the truth, unravel the mystery of their life experience, and become a gentleman. They value the way of a gentleman and demonstrate the chivalrous spirit of "using their own strength to make the world fair". A strange book, a grudge, a belief, a legend.—Bilibili