close friend, bosom buddy / crony, chum

己巳: Earth Snake in Chinese zodiac / 岸: bank; coast; shore / 騎士: knight / 棋士: professional shogi player; professional go player / 旗幟: flag; emblem / 季子: last child

岸辺: a male given name

岸辺: shore, bank

(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

personal, private / secret

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