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!
She said she'd stay at school 
until she finished her report...
...لقد قالت بأنها ستبقى في المدرسة حتى تنهي تقريرها
Sie wollte in der Schule bleiben,
bis sie ihren Bericht fertig hat.
Dijo que se quedaría en la escuela 
hasta terminar su reporte.
Dijo que se quedaría en la escuela 
hasta acabar con su informe.
Elle était censée rester à l’école
pour finir son travail.
Disse que ficaria no 
colégio até terminar a lição...