one in a million

Noun

Something extremely rare or unlikely.

Japanese Meaning

極めて珍しい存在、稀有なものや人 / ごく稀にしか見られない、特殊な存在

Finding a friend like Maya was a one in a million.

マヤのような友達に出会うことは、非常に稀な出来事だった。

Sense（1）

Something extremely rare or unlikely.

[…]most commonly break outwardly, and not one in a Million inwardly.