Nagasare Reijou ni Okuru Makeinu Ouji kara no Honki no Love Song

The love story manga centers on an unremarkable noblewoman and a prince who has lost his future. Mirrika, a count's daughter, gets betrothed to the second prince who has fallen from grace after losing in a political strife. The complacent Mirrika simply accepts her political marriage with the prince. (Source: Anime News Network)