darkness, the dark, complete absence of light; a dark place / (figuratively) public chaos, disorder in the world / an unknown or hidden place / (figuratively) jail, prison

(figuratively, possibly obsolete) psychological distress, the state of being at a loss

voluntarily; willingly

to go forward, to advance, to progress / to improve, to progress

progress

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

inside

中々: very, quite, considerably, rather, by no means (with negative verb)