Being 1/4 1/4 seems redundant, it's basically 1 person with a split personality. Your skill is basically healing through alignment. But you have to think how that would work and what would be the downside to it. Right now it sounds a lot like a clean/perfect version of my characters reverse drain, which essentially works a lot like your skill does (even if I were to go scientific the theory is still pretty much the same). You also haven't decided a type yet, which is weird because you listed such a defensive skill/character.
Drain: Through close contact with the target Yoma, Kaiserin can drain the opponents stamina and uses it to increase her own stamina. Opponents feel tired and their endurance goes down greatly. Drain can also be used in reverse, giving an ally some of Kaiserin's stamina, or by using Kaiserin as a catalyst, transfer stamina from one Claymore to another.