Kinamara's manga / #Ch 4(34)

Ethan is the ML (white-haired guy) and he also came back. Actually, he is the one who made it happen. In the 1st life, he has a horrible childhood because he is the bastard son of a prostitute and the Duke, so he is mistreated by the Duchess and his older half brother. After the brother dies because of his own stupidity, Ethan becomes the heir and plays the part, having a great disdain for those who wants to win his favour now because of his rank. He meets by chance Dorothea and recognizes her as a kindred spirit, someone who is the same as him (not loved by her father, etc). For him, Dorothea is perfect as she is, even if she cannot summond the light spirits, he believes she can be a great queen. Si he becomes some sort of servant/follower, doing everything in his power to help her get the throne, he doesn't care about others or innocent people, he only cares about her. However, he hates Theon as he sees him as her weakness and also because he knows Theon is using Dorothea (he found out his secret). The real reason behind Theon 's engagement with Dorothea is that Theon has contact with dark spirits and he can only control them when the light spirits of Raymond, Dorothea's brother, are near. Once Raymond dies, he starts losing his mind and commits suicide. In this 2nd life, he wants her to become queen because he still believes she is the correct person to do a good job, but he won't make the same mistakes or let her suffer again. Extra info: in the debut ball or whatever is when Dorothea realices he also came back from the previous life. And she also sort of "accepts" he's been in love with her for a long time. Then he kisses her while she cries. (I haven't finished the novel yet, sorry.)

Playboy falls in love with uke.

The seme is very much in love with the uke and they’re a couple already when the plot starts!