ex : so, after MC died, her comrade looking for her, and flipping the whole world, but still can't find her. Idk why but they end up meeting a girl who looks like her, and crown her as the heavenly princess (even though the emperor of heaven doesn't recognize her, but all the temple insist to make her the princess. So it is kinda like the substitute fake scenario. At the beginning, she is so annoying, and try her best to compate with MC (but MC ignored her, because she is just a child for mc). She is also a white lotus and make all the closest person to MC angry with her fake personality and fake kindness. But then, something happend, and MC stuck somewhere with her, and we end up knowing that she is not what she seemed tobe. She actually regard her role as job, and be realistic about it. She even warn MC to be cautious and dont trust anyone. They will meet and forced to be alone multiple time, and I end up loving her. She is actually a tsundere. So cute. She went as far as warning MC to be careful, and if they betray and hurt her, MC can go to her place, and she will hide MC. MC touched with her sincerity, said to her that she will protect her too if they hurt her

when MC first possessed the body in her first time there, she can feel the OG soul in that body still exsist, and she try to nurture that soul and hel her reincarnate. Later, in this 2nd life, she will go find MC and I am so happy for her. Usually, author will not explore the og soul and won't developed the character that way, but she did it. She is an amazing person, and she deserve to have her own life. I hope author will make a spin off about her