Fusion

Jean was able to obtain the bodies of those Immortals not just by pure luck but also with his wealth, connection, and power. He was one who truly wanted to obtain the secrets of the Immortals…

That was the reason why he truly regretted what had happened to Vale, who turned out to be the Shadow Immortal. If he had stuck with him during that time, perhaps he was already enjoying the benefits of having an Immortal ally.

"You need my failed experiments?" Jean asked after some thoughts. Although he had failed so many times to obtain the secrets of the Immortals, he was still able to discover numerous things. Those failed attempts would definitely save Maya's time…

After all, the knowledge she obtained from the Chaos Alchemist wasn't infinite, and there were still some details that Maya needed to discover herself in order to fully understand some recipes and experiments that she had inherited.