jack'ost is a dreamer NPC that is found for the first time in the shippin', he is the main leader of the o'watchers, accordin' to several npcs of the kim kasino, long 'fore hambo 'nd kalligo enter the dreamworld, jack'ost at the beginnin' was the previous owner of the chat restaurant, bein' a cook at said restaurant, it seems that calliope was an apprentice of jack'ost, teachin' him to cook and manage a restaurant for himself, in fact, calliope still keeps certain ingredients in his restaurant, it seems that calliope is still fond of jack'ost since he left kim kasino to manage what would be him current crew. jack'ost would have a crew some time after the current events, he and his crew were dedicated solely to fishin' and selling marine food, however, cronhooks came out of nowhere with his crew of clockwivers, destroyin' the shippin' and sinking it in the middle of the search zone, after a lon' wait without visitors, hambo, kalligo 'nd pazuzu arrive at the shippin', the o'watchers consider them as unwanted guests, so they notify jack'ost 'bout this, after the party appears, jack'ost it see them as guests who simply stayed to stay, since he don't consider them a threat as such, and he seems to be convinced the party will also stay in the shippin', however, the thing intervenes out of nowhere, warning jack'ost that if they stay in geek world, he, along with his crew and the party, will be trapped forever, jack'ost, thinkin' 'bout it a little, decides to use the ship as a means of transportation to try to go to software port, everythin' seems calm, until one of the o'watchers notifies jack'ost and the party that there is a threat nearby, said threat destroys a part of the ship, jack'ost tells the party to go to the basement of the ship in case there is a problem, after investigatin' what it was, it turns out that it was nothin' more 'nd nothing less than the dream leviathan, a giant marine dreamer, so the party begins a battle against the dream leviathan, after defeat it, jack'ost was finally able to reach software port, upon noticing that the party defeated the dream leviathan, jack'ost celebrated with a dinner with his crew and the party, after this, jack'ost decides to be an ally of the party, 'nd help with his crew to solve the puzzles of the kim kasino, after finishin' the geek world, jack'ost with his crew, are recruited in funky town, jack'ost with his crew celebrate it as a guaranteed victory, in the bat route, the shippin' 'nd search zone are inaccessible for the group and the player, because there are no npcs on this route, makin' their recruitment impossible and their where'bouts uncertain, jack'ost, like the o'watchers, is a sharkine with an adult size, he has the same colours as his crew, blue-gray skin with a slightly grayer outline of his belly and part of his face, he has yellow eyes with one pupil black, black eyelashes, spikes on his head, reddish hair with a ponytail, a red and black pirate hat, a white scarf, a red jacket with a black shirt, he has no visible fingers or mouth, and shark fins with spots of the same grayish colour as his belly and part of his head. In the japanese location, he usually speaks a mixture of archaic Japanese with a pirate accent.