Aoba and Mink head further into Oval Tower and find data on Toue's experiments. Aoba finds out that Mink means to kill Toue, but before he can do anything, they end up being chased and have to seperate. Suddenly, Sei appears in front of Aoba. He tells Aoba that he's been waiting to meet him... but who is he?
You must be wondering why we're here.
لا بدّ أنكّ تتساءل عن سبب وجودنا هنا
Du fragst dich bestimmt,
was wir hier machen.
Seguro que te estás preguntando 
qué hacemos aquí.
Seguro que te estás preguntando 
qué hacemos aquí.
Tu te demandes
ce qu’on fait ici, j’imagine ?
Não deve entender 
por que estamos aqui.