Of course, not receiving any rewards in the mission is merely an accumulation of experience. The warehouse might make a judgement due to overly special changes, causing one to lose the opportunity for regret.
And even if it's a little more cautiously handled, if one realizes something is wrong after consuming the characteristics, the warehouse might still not instantly make a judgment about one's status change. However, when the mission ends in failure, the reward is not necessarily nonexistent.
In facing the first scenario, considering his opponent might truly be a deity through the ages, Fu Qian never thought about securing a hundred percent certainty.
What he needs to avoid are only gambles with a probability less than or equal to fifty percent.
This possible rare exception is merely a discount in the calculation of the winning odds.