birth certificate

proof of qualification

proof; evidence; verification / (mathematics) proof

to prove; to confirm / (mathematics) to prove

"natural hair certificate": a certificate requested by some Japanese schools that affirm that a student's hair color is naturally not black, not straight, etc.

得る, 獲る: to get, to acquire, to gain, to obtain, to win, to catch / 選る, 撰る, 択る: to choose, to select / 彫る, 雕る, 鐫る: to carve, to engrave; to inlay; to drill, to make a hole

有り得ない: impossible

穢多: (historical, offensive) the lowest group in Japan’s caste system during the Edo period

past tense of える (eru) [ichidan]

ahem (clearing of the throat) / hmph! (triumphant)