Akita Neru is a long-running fan-made Vocaloid derivative with a bratty tsundere persona, famous across Japanese meme culture for dismissing everyone as 'zako,' a slang insult roughly meaning 'weakling' or 'loser.' This rapping clip is a fan-made remix that leans into that persona, pairing her sharp, synthetic voice with a hip-hop beat. It circulates on anime soundboards and short-form video apps, where editors use the familiar insult to punctuate jokes. Fan remixes like this keep Vocaloid culture remixing itself, one inside joke at a time. It sits alongside other short anime voice memes like Tuturu that thrive on fan soundboards.