Ragnarok M: Eternal Love' newest collection of pet is named PENPEN, this penguin is one of the characters from the anime Neon Genesis Evangelion, one of the events this season.
Here are the Pet skills and its descriptions:
Peck! Peck! Peck! (Active Skill)
Smart (Passive Skill)
Labor: Cuisine Association I (Passive Skill)
Bath (Passive Skill)
Drowsiness (Passive Skill)
PENPEN Pet is only available in the event, you can purchase it using 500 Nerv Emblem. It's food called Canned Skipjack is available in Pet Material Shop in Suth Gate of Prontera, Coloful Shell Shop and Nerv Emblem Shop.