It's a Birthday Party, Dajo / Iyami's Great Discovery (S01E06)

The sextuplets recieve a birthday party invitation from their childhood friend, Hatabou. They wonder how he's been lately since they hadn't seen him in years and receive a shock when they go to his current residence. Everyone's idol Iyami has lost his job and can't seem to catch a break with gambling ever since he came back from France (at least, he says he's from France). To make things worse, he ends up chipping his treasured overbite... However this leads to some unlikely consequences. (Crunchyroll)