baggage, luggage / unwelcome burden

one's back

big, large, great

to be burdened with, to carry on back or shoulder

Same as above.

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

(slang) Alternative form of 大きいお友達

to bear on the shoulders