A department chief within a company; analogous to a vice president in an American company. / The head/leader of a 部 (bu) – division, school club, etc.

section manager; section chief

隠す: (transitive) to hide, to conceal

核心: kernel, core / 確信: conviction, belief, confidence / 革新: reform, innovation

確執: vendetta; discord

確執: to feud; to be at odds

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

innovation / progressivism