Sekai's Happy New Year! (セカイのハッピーニューイヤー!, Sekai no Happii Nyuuiyaa!) was the 9th event in Project SEKAI COLORFUL STAGE!. The event period started on December 31th, then ended on January 8th.
Event cards
Event shop
Sekai's Exciting New Year Gacha
Event bonus
Event bonus characters for this event included Vivid BAD SQUAD Hatsune Miku, Vivid BAD SQUAD Len, Leo/need Megurine Luka, Shinonome Ena, and Tenma Saki. The bonus attribute was "pure". Matching either character or attribute granted +20% event bonus while matching both granted +50% event bonus. For more information about the event bonus system in general, see here.
+50% Bonus cards
The following cards contributed +50% to your team's event bonus. Template:Event Card Grid