to coagulate; to curdle; to be fanatical; to be obsessed with; to stiffen; to become stiff
fastidiousness; enthusiasm for one thing; meticulousness; susceptibility for a stiffening of the shoulders
① 首の後ろから肩にかけての箇所に、筋肉疲労などの不快感を感じること。
to be into something (e.g. a hobby)
to be into something (e.g. a hobby)
perfectionist; enthusiast; zealot