Mei Kuroishi

Mei Kuroishi, originally named Black Eyes (ブラック・アイズ), is a supporting character in the Silver Days manga, and a main ally until the Final Exam Arc. This is the original depiction of May Blackai, as created by Alex Guy.

Mei was a thief who lived on her own before encountering Silver, quickly becoming one of his closest friends along with Go Marufuji, Ryohaku Shimamoto, and Kazuma. Enrolling in Seven Stars University, Mei accompanied Silver in his quest to rule the country, but redeemed herself following the conflict with Division X.

Despite becoming outclassed by her friends and enemies, and retiring from fighting, Mei occasionally returned to lend a hand in dire situations.

Trivia

 * Mei was originally a male character referred to as Black Eyes.