比叡山: Mount Hiei

Mount Hiei, a mountain on the border of Kyōto and Shiga prefectures

use one thing for many purposes / work someone hard

頭: head

ouch

(idiomatic) Not caring at all, being no skin off one's nose, being of no concern at all.

a vehicle decorated with images of fictional anime, manga, or game characters

(kyabakura industry) horrid client

head / counter for large animals

head (body part) / (anatomy, archaic, possibly obsolete) the fontanelle part of the skull