Air's manga / #possesive lover(1097)

Old childhood friends. One day separated because seme kissed uke. Years later uke became a general of his country but lost to seme(who change his name). Uke went under surgery to change face and infiltrate seme castle as concubine. Seme has curse that turns hair black to white and cold skin. Seme really likes uke and has been looking for him since his "death" to protect him. Started to fall in love with uke but protects the ukes brother who looks like original uke. Seme thinks the brother is the uke who went under surgery. Uke knows the seme (with new name) is the childhood friend. But hiding it from him because doesn't want to disillusion him. Uke physical body was strong before the surgery and became super weak