ヒ

Etymology 1
.

Usage notes

 * In writing ヒ, the short stroke is sometimes written from left to right and other times from right to left.
 * In writing ヒ, the short stroke is sometimes written from left to right and other times from right to left.

Etymology 2
From former logo of Twitter looking like character.

Proper noun

 * 1)  Twitter

Usage notes
In most cases, ヒ is rendered as half-width katakana ﾋ.