Board Thread:General Discussion/@comment-6192846-20151129184922/@comment-3467648-20151213205850

Well, I'm agree the Venom Sword may be involved into the plot. I wouldn't be surprised if somehow Gakusha and/or Kai were victims of a face swap and some mind-washing.

However,as the guys mentioned early, it's improbable Gakusha was a contractor due the issue of increasing libido and the emotional outbursts. However, this doesn't mean that someone else used the Sword (MA?)

On a side note, I'm not discarding the possibility that Kayo wasn't so delusional as it's implied, and actually his husband was unfaithful, specially if we consider KAITO's characters usually are moved by the guilt and selfishness (Kaspar and Gallerian, anyone?).