The Physique in the Grimoire

"But first..." Ryuk mused as his eyes opened, finding himself back in the snowy plain.

"I need to improve my Frost Cultivation until I reach a bottleneck," he muttered to himself.

As tempting as acquiring a Void Art and unlocking a new ability and element might be, he didn't want imbalance in his cultivation.

He was already more than capable of increasing his frost cultivation and felt it would be best to focus on that first and reach its limit.

When he reached a bottleneck, where he could no longer progress, then it would make sense to switch to the Void element, get a Void manual, and begin cultivation.

To leave one incomplete just to move on to another would only create chaos and might even hurt him in realizing his full potential.

For that reason, he spread his senses around him, his eyes straining for thousands of miles and overlooking everything.