If you control no face-up monsters, you can Special Summon this card (from your hand). If Summoned this way, treat this card as a Tuner. You can discard 1 card, then reveal 1 WATER Synchro Monster in your Extra Deck; add 1 WATER monster from your Deck to your hand with the same Type but 1 Level lower than the revealed monster, then you can change this card to face-down Defense Position, also you cannot Special Summon from the Extra Deck for the rest of this turn, except WATER monsters. You can only use this effect of "First Penguin" once per turn.