Hakoiri Musume Desuga, Keiyaku Renai Hajimemashita

Iroha has never been in a romantic relationship at 23. After her mother arranges a marriage interview, she decides to take one last stand before complying. To do so, she needs help and approaches Kashiwagi, a handsome coworker. He refuses at first, but later agrees to her plan. In return, he asks to be in a temporary contractual relationship with her, pretending to be his girlfriend.