kanji used to transliterate borrowings from foreign languages / sing, singing / elder brother

お兄さん: you; he; him (a non-aged male stranger)

a hero (person of great bravery) / a hero (main protagonist)

お兄さん: elder brother

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

(honorific) elder brother / you, he, him (a non-aged male stranger)

a personal or private matter / selfishness / privacy, secrecy / (women's speech, obsolete) a brother-in-law

personal, private / secret

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

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