However, the three levels weren't just because of the environment-he'd refined the Wandu golden core fruit into a Supreme-grade golden core, and used it with his training. Even so, it was enough to shock people.
Golden core full phase was only one step away from nascent soul, and he'd just finished using up all his golden cores. Lin Yi could choose to continue practitioning here, but this wasn't the same as all the breakthroughs he'd made before-it wasn't something that could be done just by doing it.
He was the strongest golden core stage practitioner who had broken through perfectly, and his strength was strong enough. In addition, he was in a unique training environment, so although Lin Yi's inhuman breakthrough was unexpected, it was still within reason. It wasn't as ridiculous as it seemed.