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.
Until we got our bunk bed,
Fue hasta que nos dieron la cama doble,
Hasta que nos dieron la cama doble,
Antes de termos nosso beliche,