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...
But it's obvious enough 
if you think about it.
.لكن أليس الأمر واضحًا إن فكّرت مليًّا بالأمر
Aber eigentlich ist es
schon mehr als deutlich.
Pero es evidente si lo piensas.
Pero es evidente si lo piensas.
Mais c’était plutôt facile
de parvenir à cette conclusion.
Ma alla fine sono comunque fatti ovvi,
basta ragionarci su un attimo.
Mas é bem óbvio se
você parar para pensar.
Но тут всё лежит на поверхности,
достаточно подумать.