The protagonist of each story is tormented by some memories of the past, just like a wisdom tooth. Only those who have experienced a wisdom tooth know its torment. On weekdays, it is always waiting for an opportunity to lie dormant.
The protagonists will be reminded of memories inadvertently. When controlled by the past, it is like wisdom teeth inflammation, the torture is excruciating, but because of their own character flaws, they are not brave enough, so I originally planned to name it wisdom teeth, but unfortunately the name has already been used.
Later, I thought that each protagonist's self-redemption was like a dentist with little knowledge. So let's just call them dentists and wisdom teeth.
Intention: reality