Hayato temporarily set aside his research into a ninjutsu containing five attributes and continued studying Kekkei Genkai.
Kekkei Genkai involved genetics. Inherited genes altered the chakra systems of bloodline ninja, so that when chakra of two different attributes mixed, it was no longer mere stirring—it underwent a chemical reaction.
Everyone knew that ninjutsu could reinforce or counter one another, but chakra of different attributes had no such relationship. Their forms remained stable; even when mixed, once separated, neither their quality nor quantity changed.
Could it be...
"A catalyst?!!!"
A flash of inspiration struck Hayato, and the more he considered it, the more plausible it seemed.
A catalyst did not alter chemical equilibrium in a chemical reaction, but it could alter the rate of the reaction.
The reason chakra of different attributes did not react—or reacted at an extremely slow rate—might be the lack of a catalyst.
If Hayato had guessed correctly, that catalyst should be a special bloodline. More precisely, it was the bloodline of the Ōtsutsuki Clan—the power inherited through genes.
Hayato was a little frustrated. Why had he returned all his biology knowledge to his teachers after the college entrance exams? Only when knowledge was truly needed did one regret not having learned more.
Having solved one problem, even more questions surfaced.
For instance, both were Magnet Release, yet some controlled Iron Sand while others controlled Gold Dust. Why did they control different things?
Sunagakure's Magnet Release was the result of Sunagakure researching Shukaku's chakra. Their ancestors had not possessed this ability. Could it be assumed that most Ōtsutsuki bloodlines contained genes capable of activating Kekkei Genkai, except those genes were recessive? Under special conditions, they could be triggered into becoming dominant, after which those dominant genes could be passed down to one's children.
Rasa and Gaara were