How about the refess equivalent of Kurina:
Pop Idol / Candy
Picture: Bunny girl dressed like a pop idol
Revival - This unit uses 0 sp to revive
Auto Skill 0SP: Holy Melody - All other friendly units get +10 hp.
Action Skill 1Sp: A Girl Worth Fighting For - Target friendly unit can not be removed from the field during your this or your next turn except via "burying".
Its a bunny girl cause Refess has Light Chaser / Advent, a bunny guy. Unlike kurina she's with out attack power and thus not an offensive threat, she's also a little slower too. She does however have a tiny bit more health, still revives for free, still has a potentially decent auto skill, but most importantly, has an action skill that can protect one unit every turn from being returned or auto killed, they can only die through being closed and you not being able to revive them.
The bunnies of Lavato have special abilities, like 'Action Skill: Make Carrot Disappear.'