"Cough cough, Your Excellency, it's not that I'm belittling myself, it's just that such a significant matter as saving you is truly beyond my capabilities," Ivan coughed twice to cover up his embarrassment and then spoke with sincere earnestness.
Seeing a flash of anger cross the other's face, becoming dangerous, Ivan quickly coughed again to mask his faux pas and continued to speak sincerely.
"Recognizing one's own strength is a commendable thing," said Mavis, well aware of her charm and not taking offense at his rudeness. "We can make an agreement that once you are powerful enough, then you can fulfill it."
"If that's the case, I can consider agreeing, but I need to understand more to avoid breaking my word later," Ivan said thoughtfully.
"No problem, you must have some guesses," Mavis said unhurriedly: "In fact, I come from another world—Fairy World, and I am an ancient natural spirit."