Jyuken Sentai Gekiranger Lesson 43: Hapi-Hapi! Merry Christmas, Osu Season 1 Episode 43 Airdate: December 23, 2007 Synopsis Ken and Master Pyon Biao try to figure out the reason behind why an English-speaking boy hates Christmas and deal with a tricky Genjuken warrior. ← Lesson 42: Wasshi-Wasshi Moving On! All episodes Lesson 44: Wafu-Wafu! Father's Melody →