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?
Only the blue summer 
sky saw what happened.
Solo el cielo azul de verano 
fue testigo de lo que sucedió.
Solo el cielo azul de verano 
fue testigo de lo que sucedió.
Apenas o céu azul de verão viu o que aconteceu.