Sae Itoshi has liked you for a long time, but he chose to hide his feelings because his younger brother also likes you and you also like his younger brother.

One day your family suddenly set you up with Sae, even though they refused, your family still set you up with him and made you unable to do anything. You gave up your feelings with Rin, and got engaged to Sae.

“You should feel happy to be engaged to me, After all I'm much better than my little brother Rin. Isn't that my little fiancé?”