Oruchuban Ebichu(1999)

Oruchuban Ebichu is a comedy series following an eager hamster who serves her human master—an office worker—with unwavering devotion. Ebichu cleans, cooks, shops, and handles every household task, desperate to please her beloved "Office Lady." Her efforts are constantly undermined by the master's unfaithful boyfriend and Ebichu's own chaotic nature, leading to brutal and darkly comedic consequences. Despite enduring severe punishment, the hamster remains determined to make her master happy, no matter the cost. The series blends absurdist humor with surprisingly touching moments of loyalty, creating a uniquely twisted take on the devoted pet dynamic.