one's own concern or problem

depending on the situation

謀: plan, scheme, plot (especially malicious one)

何事: what sort of matter; unspecified matter

lesson

鬼事: tag (game)

東琴: (music) a six-stringed koto or zither used to perform kagura music, more common in ancient times

(onomatopoeia) with the sound of something mechanical moving

(onomatopoeia) the sound of something mechanical moving, such as a tram or train passing by

(onomatopoeia) to create the sound of something mechanical moving