Isane and Yachiru are treating the wounded Kensei and Rojuro when they are attacked by Gwenael, a Quincy who not only possesses the ability to disappear physically but can also erase his existence from his opponents' memories. Fortunately, Yachiru is able to rely on her natural instinct and reflexes in each of her "first battles" with the enemy. Getting the upper hand, Yachiru goes on the offensive by releasing her Zanpakuto, much to the surprise of Isane, who has never seen Yachiru's Shikai and its abilities. But just as Yachiru is backing Gwenael into a corner, a new enemy enters the scene.