Actually, it's "President."
Reduce his HP to 7777 or 777 or 77 or just 7, then kill him. Repeat this exactly 77 times. If after dying with that amount of HP any more or less than 77 times, you'll never encounter Reeve at the base of Mt. Giyaya which replaces Mt. Nibel after a volcano erupts from out of nowhere.
Where is the \\\\ monster located?