The Tenshi's servant Hane is actually Kyoukei, acting Master of Zensei, who believes Den Shinchuu possesses an important secret concerning the Koushin War.
He reveals that he hid his identity to get closer to Den Shinchuu and planned this attack so he could acquire that secret.
However, when Den Shinchuu refuses to talk, Kyoukei summons Meikonjutsu user Ro Ryou and tries to steal Den Shinchuu's memories...
Sleeping deprives people 
of their self-control.
.النّوم يفقد النّاس التّحكّم في أنفسهم
Der Schlaf nimmt den Menschen
auch die Kontrolle über sich.
El sueño priva a la gente
de su autocontrol.
El sueño priva a la gente
de su autocontrol.
Le sommeil fait perdre
la capacité de se contrôler.
durante il sonno sarebbe privo di autocontrollo.
Dormir tira o autocontrole das pessoas.
сон отнимает у человека
самоконтроль.