本当の自分

true self

→ 本当
phrase Rare #45,266
true self Refers to who someone really is, as opposed to the persona they show others.
JA: 一人でいるときの自分が、本当の自分だと思う。
EN: I think the person I am when I'm alone is my true self.

ここにいる僕が本当の自分なんだ

This is the real me.

— アバウト・タイム ~愛おしい時間について~ (2013)

誰も本当の自分など発見したくない

No one really wants to discover their true self.

— Article 15 (2019)

彼は本当の自分をしらないようだ。

He doesn't seem to know his true self.