Saturday

every week; weekly

to take supplementary classes

supplementary classes

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

mathematics (field of study)

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

school (institution dedicated to teaching and learning)

to go; to come to one's place / to (a letter) be delivered / to depart / to rely (on a method) / (年が～) to age / (うまく～) to go well / イく: (slang) to have an orgasm, to come, to cum