Protective Teacher, Aiko (ARI/S103-E072 RR) [Arifureta: From Commonplace to World's Strongest]

[CONT] If you have 2 or more other "Classmate" or "Teacher" characters, you cannot receive 1 or less damage by the [AUTO] effects of your opponent's characters.[AUTO] [Put 1 climax from your hand into your waiting room] When your character's trigger check reveals a climax, you may pay the cost. If you do, choose 1 character in your waiting room, and return it to your hand.