wait im dumb did he turn back time or something

I think she was reincarnated, but yeah his situation im still confused about, he could also be reborn or something like that ┗( T﹏T )┛

Wait I thought the ML went back in time with his memories of his future and the FL didn't as well as was how she was at that time in the past. Isn't that what happened??

I thought his then lover (who he made a toxic relationship with because he thought giving her none of her joys or sorrows in her life would keep her alive but she ended up not wanting to live anymore because of that) he soul or smthing similar to it reincarnated (no memories ofc, idk maybe thi mc will get them later but prob not) and that red head has hthat reincarnated or whatever soul and he has such a strong love and connection to it that he found whoever was the new Senia or whatever the name is. So now he wants to keep that senia happy with all the things she wants instead of making the mistakes from the past relationship with that soul. (⊙…⊙ )

Her soul*

He= ML