What does Sahara sauce mean?

"Seyuan sauce" is a network term, which comes from the game "New bullet breaks V3 in the new semester and everyone kills each other". "Sehara" is the original title given by the character Oma Kokichi, while "sauce" is a kind title for young men in Japanese, similar to "little brother". Therefore, "Seyuan sauce" can be understood as "Little Brother Seyuan".