The safe, beautiful way to say 'transformation' — unlike 変態.

What a Japanese person actually thinks
Delicate and pretty. Unremarkable in the best sense — nobody will find it odd, and the meaning is unmistakable.

Meaning

Literally: insect + thin leaf
Actually: Butterfly. Carries the same transformation symbolism as in the West, plus a note of the soul in Japanese folklore.

Scores

Naturalness●●●●●

Normal word.

Coolness●●●●●

Attractive, well-balanced character with the insect radical. Notably better than spelling out 'metamorphosis'.

Watch out

Nothing embarrassing lurking in here.

On skin

蝶

Orientation: either

Fine brush or Mincho. The internal strokes are tight — don't go small.