Owing to an increasing debt, Kaiji Itou ends up resuming his old lifestyle. One day, while walking on the street, he stumbles upon Yuuji Endou, who is hunting Kaiji due to the money he owes to the Teiai Group. Unaware of this, Kaiji eagerly follows Endou, hoping for a chance to participate in another gamble, but soon finds out the loan shark's real intentions when he is kidnapped. Given that Kaiji is unable to pay off his huge debt, the Teiai Group instead sends him to work in an underground labor camp. He is told that he will have to live in this hell for 15 years, alongside other debtors, until he can earn his freedom. His only hope to put an early end to this nightmare is by saving enough money to be able to go back to the surface for a single day. Once he is there, he plans to obtain the remaining money needed to settle his account by making a high-stakes wager. However, as many temptations threaten his scarce income, Kaiji may have to resort to gambling sooner than he had expected.

Chisato Mizusawa is a calm and collected assistant office manager who apparently dislikes drinking alcohol. But she actually likes it and has a secret side to her that emerges only when drunk: her cute persona, which she only reveals to her husband, the bartender Sora. Each day when Chisato comes home, Sora takes care of his beloved wife, providing her with a good meal and a fresh drink. These drinks include Plum Splet, Irish Coffee, Orange Breeze, and many more tasty concoctions that she eagerly gulps down. But as much as she likes alcohol, she loves her kindhearted husband more. Together, they share a life that is filled with happiness—and the more-than-occasional cocktail.

Seton Academy is a place attended by a plethora of interesting and diverse animal species. Jin Mazama is one of the few humans there, who also happens to vehemently hate animals from the bottom of his heart! One day, he stumbles upon the rowdy and assertive girl Ranka Ookami, a small lone wolf without a pack, who has not a single friend. The desperate Ranka tries to invite Jin into joining her pack; Jin, who hates animals, naturally refuses. Amid this situation, Jin meets Hitomi Hino, a fellow human, and promptly becomes infatuated with her. After getting to know each other, the two decide to create a cooking club, and after a few bad-blooded misunderstandings, Ranka soon joins the club as well. Thus begins the howl-some and howl-arious story of two normal humans; an adorable wolf; a cheerful koala; a sluggish, blonde sloth; and a feline with cattitude in their newfound club—in a story that teaches that friendship can be forged by creatures of different kinds.

Having spent Christmas camping with her new friends, Rin Shima embarks on a solo-camping trip to see the New Year sunrise by the sea. All goes according to plan until unforeseen weather blocks the roads back home, making a return trip impossible. Rin, who is now stranded for a few days, is invited by Nadeshiko Kagamihara to stay at her grandmother's house. What is supposed to be a two-day trip becomes an extended period of sightseeing and new experiences for Rin, and she encounters some new and old faces along the way. Yuru Camp△ Season 2 continues the story of Rin, Nadeshiko, and their friends as they further explore the joys of camping.