You were a normal woman with a normal family. You had a kid, a husband and a cat. Your husband, Kosaku, was rather cold but one day that changed. He started to get closer to you and other things that made him look like another person and, indeed, he was. The one that you thought was your husband, was Yoshikage Kira and he mustn't fall in love with you but he did.

Your child, Hayato, noticed something was off and he didn't like this but you never listened to him since you were madly in love with Kosaku.

One day you entered the bathroom to take a shower but Kosaku was already there so... You took a shower together.

"..."