You could give a character the power to manipulate the drinks in the bar. For instance, they can make a cocktail that gives temporary super strength or the ability to see through illusions. Just think of how that would interact with the other characters and the story.
Create a character who has the ability to communicate with the bar itself. The bar could have a personality of its own, and this character can understand its needs. Maybe the bar is sad because it's not getting enough magic energy, and the character has to find a way to fix it while also dealing with the other Fairy Tail members.
If you want the clearest chapter reference, go to Chapter 23. Early on, Although Jiang Li exerted very little strength, Jiang Yan instantly felt...; later, the chapter leans on The pain twisted his face grotesquely as he dove headfirst into the sofa..
Look to Chapter 70 for the clearest answer. It begins with So, under the curious gazes of everyone, Jiang Yan strutted up with his..., keeps building through He didn't even take off his sunglasses before he started reading into the..., and lands on He Yun was also surprised as he looked towards.
The best chapter pointer here is Chapter 25, "He's Actually Mr. Shen's Son?!". It opens with Therefore, from his childhood, Jiang Shixu had felt an extreme aversion to... and closes on Having worked beside Shen Lan for over a decade, she had been there when....
Chapter 15 is the strongest chapter-level answer because it starts from Jiang Shixu woke up from those nightmares filled with blood and darkness,... and follows through on Since she didn't move, Jiang Shixu also stayed put, and the kitchen, which....
A practical answer is Chapter 29, because it turns the idea into a concrete scene. The chapter opens with Big brother, it's me..." The shadow suddenly spoke and it was Jiang..., adds pressure through Learning from experience, Jiang Yan chose to stand next to Lin Manru this..., and ends on Big.
The best chapter pointer here is Chapter 36, "The Coldest Variety Show Opening in History". It opens with But soon, people began to question the authenticity of Jiang Li's bare... and closes on After swallowing the food in his mouth, he hurriedly took his megaphone....
Look to Chapter 24 for the clearest answer. It begins with Not only that, even the non-mainstream photos she had previously posted on..., keeps building through Phrases such as "ugly girl craving swan meat," "arrogant, wasteful..., and lands on Shi Xu rarely feels like going out, so that's nice.".
If you want the clearest chapter reference, go to Chapter 57. Early on, Lu Xingchao's numerous fans were stunned.; later, the chapter leans on Holy shit, what's up with God L?.
If you want the clearest chapter reference, go to Chapter 18. Early on, In the corner, a girl in a black dress sat quietly, holding a glass of...; later, the chapter leans on Her serene yet cold temperament, along with her exquisitely beautiful....