But the wear and tear of the Heart's Wound can be very rapid.
To draw a comparison, normal wear is a kind of mental aging, while the Heart's Wound is a heart disease.
Aging is slow and theoretically incurable, but disease, while dangerous, can be treated.
Anyway, the only method currently known to the homebody witch to completely resist wear is the Oath of Heart that Adam gave her.
But the problem is that the entry threshold for this thing is really too high; it requires passing the trials of the Seven Deadly Sins, acquiring the strengths of the Seven Virtues, and combining them into one to form the Iron Heart.
Though she herself learned it quite effortlessly, she also tried to teach it to her sisters, but apart from Sophia who seemed pensive, the other sisters expressed their confusion.
As it stands now, Dorothy can confirm that those who have mastered the Oath of Heart are Adam, herself, and the new Devil King, Artie.
