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.
But seriously, Osomatsu-niisan, 
I couldn't believe my ears.
.لكن حقًّا يا أوسوماتسو-نيسان. لم أستطع تصديق ما سمعته
Im Ernst, Osomatsu-niisan.
Ich traute meinen Ohren nicht.
Osomatsu, no puedo creer lo que escuché.
Osomatsu, no me puedo creer lo que has dicho.
Mais c’est vrai, Osomatsu…
Mi hai lasciato proprio senza parole, 
Osomatsu-niisan.
Mas sério, Osomatsu, não
acredito no que estou ouvindo.