A transfer student arrives in Yuki and Kaname's class. The blond boy's name is "Tachibana Chizuru." The cheerful Chizuru approaches Yuki and suddenly announces they once played together in their childhood. While Yuki typically ignores others, Chizuru's strange introduction has Yuki running to Yuta's class during his break. Is Chizuru telling the truth?
Maybe she stayed up late studying math.
Tal vez se quedó estudiando 
matemáticas hasta tarde en la noche.
Tal vez se quedó estudiando 
matemáticas hasta tarde, por la noche.
Vai ver ela virou a noite estudando matemática.