I became the butler of the gloomy young lady in my class. is a Manga/Manhwa/Manhua in english language, ROMANCE series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

My family abandoned me in the night (yeah don't ask me why idk either) leaving me behind, so I became the butler of the gloomy young lady in my class ... (apparently he has nowhere to live)