Oh wait hes also a writer in their past life? I wonder he fell in love with him because the guy reads his books in the battle field. In ch1 ML said he knew that he knew the guy read books when he spys on him, so he must noticed during those times. It's implied not many reads his books before so knowing the enemy not only reads it, but also in such hard times is such a big thing for a creator, the biggest compliment. Though only if Saionji does read them, I hope its revealed in future chapters \( ̄︶ ̄*\))