event, incident / matter, affair / scandal

even if one says

one theory, a theory / another theory, a different theory

(including figuratively) prime culprit; principal criminal or offender

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

よる: to be based on, to depend on, to be due to - (at most case) / 拠る: to be based on, to depend on / 因る: to be due to / 寄る: to drop by, to stop at / 選る: to select

夜: night

四: 4, four