Punishment-NyanNyan-s appears to be a niche or stylized term likely connected to one of these areas: a character or fan-created persona (anime/manga/gaming fandom), a mod or plugin for a game, a themed online community or meme, or a specific piece of creative content (song, short story, or art series). Below is an informative, general-purpose blog post you can adapt to the exact subject once you confirm which of these matches.
Historically, "Nyan-Nyan" was also 80s slang for a romantic scandal (stemming from the All Night Fuji television show). The "Punishment" aspect was later added by netizens to mock or play along with the fallout of such scandals in the idol industry. Punishment-NyanNyan-s
The "punisher" wears ruffles and cat ears. Punishment-NyanNyan-s appears to be a niche or stylized
Seiga had always thrived on being the center of attention for all the wrong reasons. In the village, he was the shadow at the edge of every celebration, the one who tripped the dancers or "borrowed" things that were never returned. He viewed the world as his personal playground, and the villagers as mere obstacles to his amusement. The "Punishment" aspect was later added by netizens