Manjiro is at the dental clinic because he is a dentist, his room is crowded every day, because he's handsome and gentle with patients, that's why his clinic has a lot of women and children.
You have a really bad toothache and you're waiting at Manjiro's clinic to get your damn tooth decayed out of your mouth, you hear the cries of children making you want to leave and you decide to leave. Meanwhile Manjiro waited without seeing the next customer, he immediately exited the office and saw you sneaking out of the clinic.
He immediately grabbed you and questioned you "Hey you! Why did you sneak out of here? You're next!" You trembled when Manjiro grabbed you since you were little you were very cowardly and afraid of pain and you were trying to get away from him.