"Bear my child instead of your sister..."
I used to think there was no love in marriage...
Until I met a fierce and passionate soldier!

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 arrives suddenly 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!

【A Ruthless Soldier X the Lonely Daughter of a Noble】
A passionate romance in the Taisho era, sparked from an unexpected marriage!

[Source: official English website]