
I'm reading the raws and yep, uke is 100% those child like ones. Sorta like a chunnibyou.
BTW MAJOR SPOILER.
Jan also has the previous life's memories '-' there also seems to be a reason why he killed Lanka.

wow its been a while so it's not that clear but >
-seme at first had expectations that uke also liked him but seeing as how he was being treated like trash, that changed his mind. So ended up supporting the rebellion.
>it was only until he killed the prince, that he found out the prince still kept that button/ornament seme had given to him when they were young. Maids found it when they were cleaning his room kept in a box and told seme that the prince really treasured it.
>seme's like "no no no, why" and all that. He regrets it and makes a deal with the dragon (?) devil (I forgot what his bloodline was), anyway it's his original ancestor. He makes the deal to turn back time with his life.

This is why these kind of stories are hard for me. There has to be an AWESOME reason why one of them would kill the other and then the killed one comes back and falls in love with them again. I am not that forgiving. And this reason, he felt he didn't like him back so joins a rebellion and kills him is not an awesome reason, haha.. I know it will be more complex than that, but sadly , I doubt I can forgive the seme. Even if the uke was a cr*p ruler or person, unless he was killing everyone and there was no other way to stop him, killing your loved one is relationship dealbreaker to me, haha

Ugh, I always love this authors works. That art style

"to take an enemy's heart" is (for me) their ultimate work. I met this author because of that story and it hooked me in a way that made me wait two whole years for an uncertain update lol.
you are lucky since it's complete (60+ ch.) and updated on this site! I really recommend it to you :D if you can't find it, try typing "YUSA" instead ^^
(and sorry for my english, I'm not that fluent heh)
This is a fucking masterpiece