Choose one character on your field. It gains 2000 BP until the end of the turn. You may place one face-down card under an "Aki Hayakawa" on your field into your sideline. If you do, switch one of your AP cards to active, and choose up to one "Aki Hayakawa" card on your field and give it [Impact (1)] (When this character attacks and wins a battle, deal 1 damage to your opponent) until the end of the turn.