Biala being the home of Santa, Christmas is really important. Blitzen is one of Santa's reindeers and he needs your help to get enough items in time for Christmas. Viottos work for Santa too, and therefore the pet species is limited. If you can help Blitzen and complete his 30 missions he will reward you greatly. Blitzen will give you a mission every day, as long as you haven't already completed another mission in the same day. You will need to collect a certain item for him within a certain time limit. At level 1, all items asked for will be rarity 1 - upto level 30 where all items asked for will be rarity 30. He usually asks you to collect just one item, however he can ask for up to 3. If you fail to bring any of them, you will have to start again.