Taishou Itsuwari Bridal: Migawari Hanayome to Gunpuku no Mouai EP1 - Chance Meeting - You're the One Who Will Have My Baby, Not Your Sister

Despite being the daughter of a viscount, Asako is rejected by high society and treated as a nuisance by her parents. When a marriage proposal suddenly arrives for Asako's younger sister from none other than Captain Kido, a soldier known for his coldness, she doesn't hesitate for a moment. To protect her precious younger sister, Asako volunteers as... a substitute bride!