Review Detail of Arret in Unparalleled After Ten Consecutive Draws

The protagonist is an idiot. He is too obviously using the things he won. Establishes a powerful array of energy collection, okay, let's say they won't notice it in the sect. Summons a powerful creature, and the servant also sees the call. Okay, let's say the servant is silent, and his residence is protected from scanning. But why does he use a technique of practically the highest level! Really no one is interested in where he got it? This technique is equal in level to the best techniques of the sect! Okay, let's say he can blurt out that he has found the inheritance. And let's say there is no sect in the world with such a technique. But he doesn't seem to have thought, maybe he was using the technique of an enemy sect. All the same, is it really impossible to keep such a technique as a trump card?