close friend, bosom buddy / crony, chum

脳味噌: brains

上園: a surname

御園生: a surname

(colloquial, humorous) "yaramiso", describes the situation or person who had no sexual experience till about 30 years old

儀式: ritual, ceremony

川岸, 河岸: riverside, river bank

演技者: a performer, an actor

技師: engineer; technician / 議士: councillor; councilor; legislator / 義子: adopted child / 義姉: sister-in-law (spouse's elder sister or elder brother's wife); sworn elder sister / 義枝:

(chiefly women's speech) first person singular pronoun: I, me