A girl transmigrates by accident, going from standing on her own at first to gradually fitting into that world. Why did she transmigrate? Whose voice accompanies her? She's a somewhat depressed girl who isn't very good at loving others. She takes many things lightly. So what happened in that other world to change her mind and help her slowly become part of it? A story of mutual salvation, with a mildly depressed female lead. She always tries to stay rational, but the people she meets later slowly help her open her heart.
Her older brother is just too gentle, with the tender, affectionate warmth of a rainbow after a storm. His gentleness can soothe the female lead's wounds, but his affection for others causes conflict between them. After all, girls like to be the only one. The gentle older brother gets especially clingy when he's hurt. I hope his beautifully disheveled look will touch your heart.