Considerations

"This is it…!" Rui murmured.

He was sitting in the Martial library of the Virodhabhasa Church., surrounded by scrolls and heaps of books.

His hair and clothes were a mess. Dark bags could be seen under his eyes. Yet, an expression of ecstasy flashed across his face as he read through a scroll in his hand.

[Earthen Fortress Blossom]

This training technique subjects the body to an acid that kills cells below a certain degree of cell wall thickness. The acid is applied to the flesh of the Martial Squire, immediately killing off all the inferior cells and tissue, leaving only the most durable cells intact. Thus, when a healing potion is consumed after a training session, the flesh that is healed and restored comes from the cell division of the surviving cells, which happen to be the strongest and most durable. Over time, this significantly increases the durability of the user, albeit requiring a long time, and is prone to diminishing returns.