Kisakino Emi is an orphan whose parents died in a car accident when she was in middle school. She’s been living at an orphanage but attending a local high school so other than that part she was just your avg high school girl. One day she gets an invitation to a fancy ass all boys school owned by the rich Sumeragi corporation. Their goal is to have a girl, a “Princess” so to speak be in the school for a year to help them test waters to make the school reopen as a mixed gender school (just like with all the other HimeHibi games.) Unfortunately there’s a catch – she cannot tell her friends, or anyone, as it’s a top secret project, so they basically cut off all her communication and force her to live as the Rapunzel of Sumeragi Gakuen.
Awaki Kotone decides to take over her late grandpa’s cafe Enchante and instead finds herself surrounded by non-human ikemans from another world who were regulars when grandpa was the master. She had quit her job because it was insanely stressful and mentally abusive. The cafe basically serves only the non human guys and because it has a magic barrier around it that makes normal humans not notice its location. Some of them also live there and pay rent in rare items from beyond this world worth thousands of yen.