A manga about nothing. Slice-of-life manga about school girls are a dime a dozen, but this one is just so utterly subpar. The jokes are repetitive and boring; chapters are short yet still feel too long; the fun density (jokes per page) can't compete with even mediocre 4-koma mangas (let alone good ones); the characters are utterly one-dimensional; etc.
(Also, this is supposedly a spin-off of Teasing Master Takagi-san, but that's entirely unnoticeable throughout.)