丑三つ時: (archaic) the time between and 2:00 AM and 2:30 AM, or between 3:00 AM and 3:30 AM; (archaic, poetic, by extension) the middle of the night, late night

(archaic) the time between and 2:00 AM and 2:30 AM, or between 3:00 AM and 3:30 AM, depending on the timekeeping tradition in use / (poetic, by extension) the middle of the night, late night

appointment; arrangement for a meeting

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

三つ: three [generic] things

三日: three days, third day of the month

隠密, 陰密: Stealthy, covert, undercover.

益光: a male given name