(idiomatic) to stay in one's heart; to be enduringly memorable; to be unforgettable

vestiges, remains, traces / the sadness of saying goodbye, parting

imperfective and stem (or continuative) forms of 別れる (wakareru) [ichidan]

parting; farewell; goodbye

(sumo) used by a 行司 (gyōji, “referee”) to indicate that a match has begun and is ongoing

past tense and perfective aspect of 残る (nokoru) [godan]

remain, be left

completely; entirely; without exception

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