The smell of the fruit in the air had faded a little bit but it was not enough to make the beast alert who was still sleeping soundly, in reality, the Timber - Ox in its fight against the Blazing monkey had been injured and this was exactly the reason why it was in such a deep slumber.
The Timber - Ox was focussing on healing and was conserving its energy, if it had been some other time then Kai wouldn't have been so lucky, though Kai had only decided to do this dangerous thing after properly observing the beast so if it was not injured then he would not even have tried doing it in front of this beast.
Round ten ended Kai was not sure how much time had passed or what was happening around him, his senses had long since stopped working, maybe it was because the memories from his past life still haunted him that he never truly cherished being alive, aside when he is with Emily and Ron.