The inhabitant known as Stick is an NPC introduced in the Otherworld Update. Stick's locations can vary and will change its position during the nighttime. He is commonly found in towns, but can also appear elsewhere. He is notably known to sell food towards the player while they are participating in the Otherworld Tower dungeon.
Stick is also responsible for being the quest giver of the Firefly Quest. In summary, the more Fireflies a player has and the more they give to Stick, the better the rewards.
Most of these rewards are randomized and can vary. They will mainly be found in the Firefly Quest article.
While interacting with Stick in the Frontier, Stick will ask the player for a certain amount of fireflies that players can exchange from for rewards:
10 Fireflies
20 Fireflies
40 Fireflies
75 Fireflies
150 Fireflies
While the player is in the Otherworld Tower dungeon, Stick sells the following consumables/items for the players. Some of these items can also be applied in the Frontier:
Carrot Juice
Eggplant
Giant's Corn
Minion
Rich Man's Delight
Tall Anthony
Locations of Stick
Stick can be found in various locations and therefore, the player must search throughout the Frontier in order to find its position in the Frontier. Here are the locations: