The "Marshmaro" characters are visible to us, but not to the people in the BonKoi world. They come in various forms, with various personalities. The scripts call them "Maro (type)." In this episode, Sayuri, Ryou, Mitsuki, Gilbert, and Yoshinosuke have been taken over by the Marshmaros. Enjoy a BonKoi that's a bit different from the usual!
but I'm not in the mood for sweet potato youkan, maro.
لكنني لستُ في مزاج لتناول "يوكان" البطاطا الحلوة-مارو
aber ich habe gerade keine Lust auf
Süßkartoffel-Youkan, maro.
pero no estoy de ánimos para 
comer youkan de batatas, maro.
pero no estoy de ánimos para 
comer youkan de batatas, maro.
mas não estou a fim 
de youkan de batata-doce.