to commute, to go back and forth, to ply between, to attend (school)

medical department

Short for 大阪大学 (Ōsaka Daigaku, “Osaka University”).

a younger sibling

one’s own younger brother / a younger male / (Kagoshima) younger brother

younger brother / younger male

(chiefly women's speech) first person singular pronoun: I, me

(polite) first-person singular pronoun: I, me

a personal or private matter / (by extension) selfishness

(formal) first-person singular pronoun: I, me