On New Year's Eve, the Asabane household finds itself a little busier than usual with cleaning.
While cleaning their room, Yuta accidentally gets water on Yuki's manga.
Yuta and Yuki get into a fight, ending with Yuki leaving the house.
Yuta has trouble understanding the situation until a piece of paper he finds in the edge of his room triggers his memory.
That huge bed excited us 
more than any toy ever could.
Más que un juguete, esa cama 
grande nos emocionaba más.
Esa cama grande, nos emocionaba 
más que un juguete..
Aquela cama enorme nos empolgou 
mais do que qualquer brinquedo.