Elise nodded. "That's right. Years ago, someone poisoned my father. It left a brownish-black mark about the size of half a fist near the corner of his mouth. He's seen every master healer out there, but no one's been able to remove it.

"Even at home, he always wears a mask. It's been his lifelong burden. He's stopped believing anything could remove the scar."

Upon hearing this confirmation, Felix said seriously, "I can make a special ointment specifically for removing scars. It doesn't matter what caused them—it works every time! I'm sure it'll be effective on your father's scar too. The question is whether you can convince him to try it."

Elise stared at him in disbelief. "Are you so sure about this, Dr. Zeller?"

"Katie's life is at stake. Do you think I'd joke about something like this?"

That was a fair point. Elise contemplated for a moment before standing up. "Alright! Since you're so confident, I'll take this gamble with you. How soon can you prepare the ointment?"

If F