2ND TIME ASKING CUZ WHY NOT

I forgot the title of this bl manwha I was reading before it goes like this,,, the mc is a prince with a blonde hair and has a friend named Langley then it's his first time attending a school since he grew up being home schooled and his soon to be partner has a black undercut hair who the mc call 'the spawn of satan' THANK YOU SO MUCH IF YOU KNOW PLEASE TELL ME