a coffee cup

residue / staying behind

be left behind as a residue etc. / stay behind

sugar

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

coffee

cup or mug, specifically, one with a handle. / prize cup / cup, a unit of measure / cup, a part of a brassiere

カップ麺: cup noodles, a kind of instant noodles sold as a single serving prepackaged in a disposable cup