Otome ga Musubu Tsukiyo no Kirameki

Touya works at the residence of the Shijou family, one of the most prominent zaibatsu in the country, keeping an eye on and being of assistance to the lone daughter Ran. One day, it was decided that the free-spirited Ran will temporarily transfer to the Meigetsu Girls’ School. Since everyone at the school, from its students to the staff, are female, it would be impossible for a boy like Touya to enter on a moment’s notice.

“Well, I will be taking care of other duties while you are there then.”
“… What are you saying? You’re coming along too”
“Eh? But, it’s a girls’ school where boys are forbidden…”
“So you’ll be coming with me, as a girl”

Not only would he have to cross-dress, but she wanted him to take her place in some situations. Despite his protests, he was ultimately defeated by her tears and unwillingly consented to entering the school as Yuuki. Will he be able to continue helping her there without having his cover blown?