a teenage girl participating in the Kogal subculture in Japan, which is a form of the ギャル (Gyaru) fashion subculture and peaked in the mid-1990s. Kogals were troped by the Japanese media as having tendencies towards being obsessively trend-conscious.

individuality, individual personality, originality

fashion (current (constantly changing) trend, favored for frivolous rather than practical, logical, or intellectual reasons)

very; extremely / exceedingly; tremendously

extraordinary, unusual

emergency

as far as ... is concerned; in terms of ...

a target, a mark, a bullseye / an objective, an object (of doing something)

a ヘルス (herusu, “sexual service”, literally “health”) masqueraded as a massage parlor

fashion show