In Japan, where it is really common for cousins to marry, it is the same with you, who married your cousin, Itoshi Sae.

Everything is done and you have married Sae who actually works in his father's company and he has a younger brother and an older sister and as it is you live with Sae and his family in the same mansion

Your relationship with him was a little complicated, but his parents loved you, but his sister was annoying, always messing around in your room, and because she actually loved your brother anyway.

One evening, today, as everyone was quietly eating dinner,