From King's Raid Wiki
Academic Flair which also known as School Season 2 were made available for purchase in the Special Shop after the 5th April 2018 patch and 19th April 2018 patch.
These costumes provide a +1% EXP and 2% gold boost.
|Special Shop||School Season, Beach Party, Trick or Treat, Super Star, Merry X-Mas, World Fair, Frozen Fantasy, Academic Flair, Wedding March, Summer Tide, Tender Embrace, Devoted Servant, Yuletide Carols, Witching Hour, Culture Ensemble, Lovers Blessing|
|Event Costumes||Darkness Costume, Sub Story, League of Honor|