"Kachi-kachi Yama" is a manga adaptation of a traditional Japanese folktale, reimagined in a visual narrative format. The story centers on a tanuki (raccoon dog) and a rabbit, whose interactions unfold in a moralistic tale of revenge and justice. The tanuki, known for its mischievous nature, causes harm to an elderly couple by stealing their crops and, in some versions, killing their livestock. The couple captures the tanuki and ties it up, but the tanuki tricks the old woman into releasing it, leading to further conflict.

The rabbit, a friend of the elderly couple, decides to take matters into its own hands to avenge the harm done. The rabbit devises a series of cunning plans to punish the tanuki. In one instance, the rabbit convinces the tanuki to carry firewood on its back, which the rabbit then sets alight, causing the tanuki great pain. This event is where the title "Kachi-kachi Yama" originates, as "kachi-kachi" mimics the sound of crackling fire. The rabbit later tricks the tanuki into boarding a boat made of mud, which dissolves in the water, leading to the tanuki's demise.

The narrative explores themes of retribution, cleverness, and the consequences of one's actions. The tanuki represents deceit and mischief, while the rabbit embodies resourcefulness and justice. The story is often interpreted as a cautionary tale, emphasizing the importance of moral behavior and the inevitability of facing the repercussions of wrongdoing. The manga adaptation retains the core elements of the folktale while presenting them through dynamic visuals and pacing suited to the medium.