This meow comes from Nekojishi, a visual novel built around cat spirits and the people who can see them, where Senpai is one of its feline characters. Clipped to just over a second, it travelled from the game into soundboards and short-form edits, where fans reuse brief character voices as reactions rather than full dialogue lines. Its appeal is its brevity and personality: it is instantly read as a cat sound, yet clearly voiced by a character, so it works as a joke, a greeting, or a soft punchline in videos about cats, anime, and playful teasing.