Saku and Yukichi receive invitations to Yume's birthday party. Yukichi convinces Saku that it'll be completely fine to attend since it'll be a costume party. However, will Saku and Yukichi really be able to fool all the parents and children there?!
Huh? Come to think of it, 
where did they go?!
Hablando de eso, ¿adónde se fueron?
Hablando de eso, ¿adónde han ido?
À ce propos, où est-il passé ?
Ma... a proposito, dov'è finito?
Ué? Por falar neles, aonde foram?
Ой, а куда это они подевались?!