一生: life

friend

all, entirety, the whole, everything

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

passage (in a book or a poem)

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) adult fans of an anime, a manga aimed at children

(slang) Alternative form of 大きいお友達