After Chihaya hears Arata say that he quit playing karuta, she and Taichi make a trip to Arata's home in Fukui.  Once they find Arata, Chihaya is thrilled and suggest that they play karuta together again, but Arata turns her down.  He's no longer the same boy he used to be.  So Chihaya tries to learn the truth—
The back of my head 
was covered in dirt!
¡Tenía la cabeza llena de tierra!
¡Tenía la cabeza llena de tierra!
Minha cabeça estava cheia de areia!