Novel Dress, Akari

/:Harmony (When your other unit is placed in the same column as this unit, both units become in harmony until end of turn) :[Put this unit into your soul] When an attack hits during the battle that this unit attacked or boosted ([Boost]), if this unit is in harmony, you may pay the cost. If you do, draw a card, choose up to one of your rear-guards with the harmony ability, and return it to your hand.