isn't it obvious?; that's common sense
Internet slang abbreviation from 常識的に考えて (jōshikitekini kangaete). Used sarcastically or dismissively online to imply something should be obvious.
See also: 常考
She's an actual high school girl.
I saw a high school girl in her uniform.
That's just common sense, isn't it?
It's obvious, right?
Of course you apologize for that, isn't it obvious?
ＪＳ refers to a female elementary school student while ＪＫ refers to a female high school student, so the two abbreviations are easy to mix up.
ＪＣ means a female junior high student while ＪＫ (女子高校生) means a female high school student, so the two slang abbreviations are easy to mix up.
Used in contexts like headcounts, reservations, or formal enumeration of people.
Standard full-width abbreviation for 女子高生 (female high school student) or, in internet slang, 常識的に考えて (isn't it obvious?).
Half-width variant, common in casual digital text.
Abbreviation. Sense 1 is from 女子高生 (joshi kōsei). Sense 2 is from 常識的に考えて (jōshikitekini kangaete). Both are modern slang coinages.