In "Shakkin Shimai" Episode 1, viewers are introduced to the Tachibana sisters, Ryoko and Akane, who find themselves burdened by a substantial debt left by their deceased father. Struggling to make ends meet, their lives take a drastic turn when their creditor, Kuroda, offers them a deal to work off the debt. The episode delves into the sisters' emotional turmoil and the moral dilemmas they face as they navigate this challenging situation. The animation effectively captures the intensity of their predicament, immersing viewers in a narrative that explores themes of desperation, sacrifice, and the complexities of familial bonds.