[AUTO](RC):At the end of the battle a "Hello, Happy World!" on your (RC) attacked, [COST][Soul-Blast 1], and return that unit to your hand.
[ACT](RC):If no orders have been played this turn, [COST][Counter-Blast 1], search your deck or drop zone for up to one "Hello, Happy World!" music card with grade less than or equal to your vanguard's and play it, and if you searched your deck, shuffle your deck.