This but it's Langris and Latry or it can be Elf!Finral and Finral
If it was Langris and Latry I imagine it would be after they defeated Zagred but when the combination power of Licht, William world tree magic and Asta anti-magic power to undo the reincarnation spell. Latry still in Langris body cause now Langris is the one who is sleeping inside of him on his own will.
It would be funny how Latry try to adjust living as Langris in near future. And pain how hurt Finral would be knowing he's brother are not here anymore(?) if Finral or anyone ever find out anyway.
If it's Finral & Elf!Finral it would be at Forest of Witches Arc when Queen of Witch killed(?) Finral by using Asta anti-magic sword. By Finral suddenly dead(?) and not dead anymore cause of Vanessa new spell it woke up the soul inside of him when Finral dead for a split second. This would be the "bonus points if this character was not aware of it"
Elf!Finral be oblivious with the Black Bulls supporting love like "Why this human was so kind??"
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Why am I like this damn this idea is to crazy
