「いつか出自が(しゅつじが)バレる(ばれる)のではないか」という絶え間ない(たえまない)不安と孤独

Ushimatsu kept his background hidden and sincerely continued his teaching job, following his father's commandment. While beloved by his colleagues and children, his heart was constantly tormented by an unceasing anxiety and loneliness, fearing 'Will my origin be exposed someday?' Knowing the reality of society's cruel discrimination, it was a daily torment like having his heart crushed.