I'll make sure you have all your firsts.

It was supposed to be a loveless strategic marriage, but he toyed with her using sweet caresses and she wanted him intensely from their first night together... Ririka was raised as the only daughter of a yakuza boss. Just as she graduated from junior college, she was told to enter a strategic marriage with Jin Kannagi, the next leader of a rival group. Jin had a scary face, but he made sweet, gentle love to Ririka after learning she was a virgin. Jin showed consideration toward her in all parts of their married life together, so she gradually fell in love with him. If only Jin could love her back... Ririka did her best to act as the young mistress of the group, both for Jin's sake and the sake of their group members, but it looks like there are people in the organization who don't think kindly of their marriage!