[Event] The Mischievous Pumpkin Ghosts

Description

Amadeo Alejandro said that Mischievous Jacks have been disrupting the livelihood of the villagers at the farm. Alejandro said he would reward you generously if you can help resolve this problem.
Kill the Mischievous Jacks, and then go back to Alejandro.
Caution: Mischievous Jacks only appear from 10:00 PM to 07:00 AM, in-game time.