Denka wa Kyou mo Shinjitsu no Ai wo Mitsuke Tarashii desu ne (Wara)

Aliche and Orland's engagement contract stipulated that he could have no more than two lovers... Aliche is the heir to the Briator Marquisate, and is engaged to the third prince, Orland. Aliche is disgusted with Orland's philandering nature, so she arranges a meeting to discuss changing his behavior. However, the prince has some unbelievable words for Aliche! (Source: MangaPlaza)