Cherry Blossoms Reflected in the Moon (White Love)

Renji Abarai, vice-captain of the Sixth Division of the Thirteen Court Guard Squads, somehow reverted to a child's form. But was it really just a coincidence? Or... For Hisana's sake, Byakuya broke the rules time and again. So what would he do for Renji... "Are you prepared to abandon the Soul Society for him?"