Declaration of Being Besties! (TSK/S70-E057 U) [That Time I Got Reincarnated as a Slime]

Look at up to 4 cards from the top of your deck, choose up to 1 yellow character and up to 1 red character and up to 1 blue character from among them, reveal them to your opponent, put them into your hand, put the rest into your waiting room, choose 1 card in your hand, and put it into the waiting room.