If you're looking for manga similar to Petit Four, you might like these titles.
The protagonist Fujisaki Futaba is a university student who had no interest whatsoever in idols… until she got a job at James Entertainment and is assigned to manage the popular idol group, “forttê”.
"This wand will bring you 'fortune', I'm sure." Lulu is an incredibly positive girl, who is overflowing with dreams and hopes. She aspires to become a magician after falling in love with her grandmother's magic. However, she was not born with an 'element', like everyone else who is able to use magic, which becomes a hurdle for her to achieve her dream. In the world renowned "Mils Clare Academy", in the magic capital Latium, Lulu goes through daily struggles to harness an inner element. Friends with peculiar characteristics begin to gather around her. Every day she seems to find herself involved in all kinds of happy(?) trouble.
When she suddenly wakes up, the heroine, Fuka, who was in a completely unknown land, has no memory of anything. All of a sudden, an unknown silver-haired man suddenly points his sword at her as the whole town runs about in confusion trying to escape. I’m going to be killed — at the moment she resigned to that thought, the one who extends a hand out to rescue her is …?
The series is about an extreme form of sport known as "Stride." It involves 6 players on a team that runs relay races in towns. The story takes place at Honan Academy where first year high school students Takeru Fujiwara and Nana Sakurai try to recruit members for their "Stride" club. They request Riku Yagami to join with the help of Takeru and Nana. Their goal is to compete and win the "End of Summer," a top competition hosted in Japan alongside other schools.
Tsukiko is in the library searching for books about tea ceremony, so she can get closer to Homare-sempai. But then sempai shows up... How will he react?
The Cosmos is ruled by a holy queen who guides and watches over the movement of the stars. By balancing elemental forces with the help of nine Guardians, she keeps the planets stable and the people content... However, the power of the queen is fading and a new queen must be appointed. Two girls are selected to be the queen candidates: Rosalia de Catargena who comes from a noble family in one of the main domains and the main character, Angelique Limoges, a seemingly ordinary girl. Will Angelique become the holy queen? Or will she fall in love with one of the many handsome Guardians and forfeit her candidacy?