ShounenAi(?) LightBL

(I'm satisfied but I'm crying! Whyyy! Give me my HE!! Give me a HE!! Sad a sad thing to see before sleep..)
The little master son of an earl, Luan, while wandering in the forest, met a boy his age. He fell in love with a sweet and kind boy, although he does not know his name. Gradually he began to neglect his training as a successor.Original Webtoon

>shounenAi
>historical/Cultivation
>Time-loop(?)/reincarnation
>Protagonist Villain(?) x (I forgot what's MC's role)