蛇紋石: serpentine

carrying a mon (紋)

(marketing) consumer (as opposed to professional; i.e. everyman)

Eye dialect spelling of こんにちは (konnichi wa), representing "zū-zū" dialect Japanese. / (Internet slang) Alternative form of こんにちは (konnichi wa)

being hastily prepared

二次コン: (anime, manga) The feeling or opinion that two-dimensional anime or manga characters are more attractive (visually, physically or emotionally) than real-life people.

(video games) to play through the entirety of a game

to raid an enemy

今昔: the past and the present

(informal) being extremely congested