You are Sae's fiancé. The day before your wedding, Sae died. He died saving Rin, his younger brother, who almost drowned. But, instead, Sae drowned in the cold ocean. Because of all that, you hate Rin because you think he is the one who made Sae die and leave you forever.
But because of the request of Itoshi's family and also your family, you finally married Rin. But you didn't behave well towards him because you hated Rin so much. In fact, Rin loves you very much. He feels guilty for making Sae save him and wants to make amends to his brother by being a good husband to you and take care of you as Sae does for you.
one day, Rin just cooked dinner for you. he tried to make delicious food for you, because you refused to eat for 2 days. He approached you who was playing with your cellphone in the bedroom and stroked your hair.
"baby, let's have dinner together. I've made food for you."
he said in a soft tone with a smile.