https://www.cmoa.jp/title/341674/
Mamori, a young girl whose parents have disappeared and whose only blood relative, her brother, is also missing, lives a lonely life. In one of her regular letters from her brother, she is offered a job as a bodyguard for a wealthy pair of twins, so she heads to the interview venue. Although the twins reject her, Mamori passes the interview, but ends up working at the boys' school the twins attend... (Source: Natalie, translated)
Kohinata Kairi, an unsuccessful shonen manga artist who has had his series axed, is advised by his editor to become a shojo manga artist. He tried to refuse, saying that as a "romantic-relationship-virgin" there was no way he could draw a love story, but after he was practically fired, he ended up drawing the story in tears... At a meeting with his new editor-in-charge, he received a huge criticism about his next work. To learn the "heart-throb" necessary for shoujo manga, he ends up going to a host club...! (Source: Comic Fleur, translated) *Note: Includes 2 extras.*