Perhaps it's supposed to be called "Seals Celebration!" as shown in the March Survival Guide, but there is no name in-game as far as I can tell.
Complete 5 Quests - 2x Experience Scrolls
Complete 10 Quests
Complete 15 Quests
Kill 1 World Boss - 20x Fortifying Meals
Kill 3 World Bosses
Complete 1 Group Dungeon - 200x Poison
Complete 10 Group Dungeons
Use Ultimate Skills 20 Times - 1x Experience Scroll
Complete 1 Battleground Match - 10x Refreshing Drink
Complete 3 Battleground Matches
Complete 1 Trial
Defeat 500 Enemies - 2x Experience Scrolls
Complete 1 Crafting Quest - 200x Tri-Restoration Potions
Complete 3 Crafting Quests
Craft 50 Items with any skill
Refine Raw Materials 10 Times - 10x Repair Kits
Harvest 25 Resources from the World
Improve 5 Item/Items
Visit 5 Player Homes - 1x Experience Scroll
Place 5 Furnishings
Scribe 1 Skill - 10x Luminous Ink
Earn 5 Ranks in a Skill Line
Earn 10 Ranks in a Skill Line - 1x Experience Scroll
Kill 100 Foes with Class Skills
Complete 8 Incursions
Earn 5 Jester's Fest Boxes - 1x Experience Scroll
Earn 15 Jester's Fest Boxes
27 possible pursuits. Rewards at 5, 10, 15, 20 pursuits.
For me personally there are around fifteen that are easy, and four more that are a bit of a chore. So I have to pick one thing from the remaining six I don't like to hit twenty. Unless I can rank some skill lines still.