Comments of chapter undefined of Ascension of the Immortal Asura

Hi author, Am confused about one thing when John and asuros where fighting why did only John feel that sinister aura assaulting his mind why didn’t asuros feel that from John? In the earlier chapters in the yuan continent John was emiting this sinister aura when he was fighting the bloodfiend emporers. I Don’t know if this is a mistake or there is a reason for this becuase it doesn’t make sense to me. in my opinion John should produce much more sinister aura then asuros becuase unlike asuros he is a real asura. Anyways thanks for the chapter man.