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.
I see. Are you really 
that mad, Yuki-kun?
Ya veo. ¿estás tan enojado, Yuki?
Ya veo. ¿Estás tan enfadado, Yuki?
Entendi. Você está mesmo 
bravo comigo, Yuki?