Just as Kenichi Amamiya had expected, everything in this world came with a measure of scheming. Perhaps Ōtsutsuki Isshiki had indeed been lucky, but clearly, that luck had been given to him by someone else. It was not his own. Naturally, this worried Kenichi Amamiya. Under those concerns, he truly discovered something rather unusual: this particular ninjutsu had a negative effect. Although Kenichi Amamiya did not know what the gap that had been left behind was meant for, he found it risky. It reminded him of software backdoors and weapons backdoors from his previous life. After some weapons and software were sold, their developer would plant a backdoor in them. Then, once the item threatened the developer or became profitable to them, that backdoor would be activated. Kenichi Amamiya did not know whether this backdoor had been left by some Otsutsuki or whether another Otsutsuki had set this trap for that idiot, Ōtsutsuki Isshiki. But since he had discovered it, he needed to find a way to patch the gap. Fortunately, Kenichi Amamiya had gained some experience in developing ninjutsu. After refining it himself, he already had some ideas about how to seal this vulnerability. All that remained was to try them. At that thought, a contemplative look entered Kenichi Amamiya's eyes. Solving this problem would be difficult, but not impossible. He already had some ideas, though he would need to think carefully about how to put them into practice. This piqued his interest, and since Ōtsutsuki Isshiki had just arrived, he simply discussed it with him.
It had to be said that although Ōtsutsuki Isshiki had been somewhat unlucky, anyone who could consume a Chakra Fruit and become one of the Otsutsuki Clan's candidates for powerhouses naturally possessed some ability. His strength was simply rather unusual, which gave Kenichi