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Besides Fire nature, Hayato also had Earth and Wind natures. With the successful precedent of the Exploding Insect, he naturally tried using Earth and Wind nature chakra to cultivate Kikaichū. There had truly been no progress at all, however, so Hayato had shelved the experiment. Until he came up with a new idea, he would not continue wasting effort on it.
The success of the Exploding Insect showed that, aside from Hayato's stubbornness, he had really just stumbled into dumb luck. Otherwise, over the Aburame Clan's several hundred years of history, there definitely would have been more than one person attempting experiments like his.
Yet he was the only one who had achieved results.
In fact, Hayato's method of cultivating insects by feeding them chakra of different natures was considered non-mainstream within the Aburame Clan—or rather, a method that had already "reached a dead end."
Over the centuries, the Aburame Clan had cultivated dozens of insects with different functions through Yin and Yang nature chakra. Yet in recent decades, this cultivation method had not produced any new insects.
The mainstream approach was the [External Stimulation Method], which altered external conditions to stimulate the insects and make them develop corresponding adaptations.
For example, the heat-resistant Kikaichū Hayato had used to defend against Uchiha Shinsuke today. The cultivation method was to select Kikaichū with relatively hard shells, breed them in high-temperature conditions, then gradually raise the ambient temperature. After a dozen or so generations of reproduction, they could cultivate the desired heat-resistant insects. It was stable and efficient, and far easier than the feeding method.
This method was not without flaws: once the