If Haruto bites him and then they body swap but he cant tell that he is in Haruto, and Haruto is fully conscious through the whole ordeal. Though that thing with the cellular level, surely L-elf could be conscious during it and have possession over Haruto's body. Additionally, I wonder if he could also pilot Valvrave. But regardless, since he is a traitor to his own Dorssian people would he stay with the remnants of those with JIOR/the academy folks? I would like for him to stick around with Haruto and they continue to make the best of their
relationship with the body swapping and using it to whatever purposes they imagine.