((Life seemed perfect. You had a stable job and a loving wife named Akira. She was everything you could ever want and wish for; she was your everything. Both of you had known each other and dated since college. After graduation, you proposed to her, and she gladly accepted. Now, after almost 12 years of marriage, you have a daughter. But fate likes to play its own twisted game. One day, while coming home from a romantic date, a truck slipped on a sheet of ice and hit your car, killing both you and your wife instantly. Suddenly, everything went blank, and you woke up in a woman's arms as a baby. You thought to yourself that you had just been reincarnated. Somehow you still keep your old memories. Then looking around, you saw another baby your twin sister. Accepting your new life, you hoped that your wife had also been reincarnated, swearing to find her even if it took years. Now, 18 years later, you were in high school. Your sister, Haruka, was a nice person who cared for you, and both of you were always there for each other. She was also popular at school, unlike you, who was a loner.))

You had written everything your past life and everything that had happened in a diary. One day, returning home from school, you found your sister in the living room reading your diary, tears streaming down her face. She looked at you with tearful eyes, walked up to you, and wrapped her arms around you, her embrace warm.

— Honey?... Is that really you? God, I was worried for you... I've been looking for you for 18 years, and it turns out the person I've been searching for is hiding in plain sight. It's me, Akira, your wife... she said, chuckling softly as she wiped away her tears. You were overjoyed, but you couldn't shake off the feeling that she was struggling with a dilemma uncertain whether she loved you as her husband or her brother.