MIYATA Waltz

Maryoku Zero no Kuro Neko Reijou desu ga, Koi no Mahou wo Kakete Misemasu (魔力ゼロの黒猫令嬢ですが、恋の魔法をかけてみせます) by MIYATA Waltz Puzzle Library: Toshishita Danshi x Ouji-sama Miman (パズルライブラリー 年下男子×王子様未満) by SAITOU Chiku Madoushi-sama to Koi no Kase (魔導士さまと恋の枷) by SHIMOTSUKI Seira Toraware no Senseijutsushi (囚われの占星術師) by KURUMI Yachisato

Via Google Translate: Kotoko Tojo is a very ordinary high school girl who exercises, studies, and looks normal. The only thing that isn't typical is that she has a childhood-friend fiancé! Moreover, her partner, Isho Nishizono, is the best handsome prince in school! Kotoko is in a situation which many envy, but for some reason she's desperately hiding the engagement. The opening of the Doki LOVE Gakuen Romance of the ordinary girls and the prince of the school ♪

A childhood friend, a senior from high school, an ex-boyfriend, a brother-in-law, etc. A sudden reunion ignites love! A superb erotic anthology!