MANGA RECOMMENDATION: Kashikomarimashita, Destiny
(by Sachimo)
13 chapters (?), i guess this is completed but site says ongoing (via Mangakakalot)
The story tells of a stubborn young master and his loyal servant. Because of their statuses, their love story is at the mercy of fate. Aoi is the heir to his family, but due to some discord between him and his stepmother, he is forced to leave the house. And there to support him is his childhood butler, Miyauchi. After living his days being doted on and served, Aoi finds his position reversed, where he has to work all day. And what has supported him throughout this lifestyle is his unrequited love of 5 years for Jirou, the heir to the Saionji family, a leading automobile maker.
(Miyauchi Ichirou and Kudou Yuuto)
PLUS:
Bonus: when Miya and Kudou are young. their first encounter...
(Toujou Aoi and Saionji Jirou)
PLUS THEIR TWINS: Sakura and Ren