As the other members of DearDream become busy with individual projects, Kanade is still searching for something he can do. He talks to the members of their senpai unit ACE about his concerns, and they tell him about a secret reference room hidden in the D-Four office building...
Who knew locks were annoying, too?
من كان يعرف أنّ الأقفال مزعجة أيضاً؟
Schlösser nerven übelst!
Los candados son molestos.
Qué fastidio de cerraduras.
C’est chiant, les verrous…
Pure le serrature sono una rottura.
Quem imaginava que fechaduras 
 incomodavam também?