狂阶

Meaning

"Hagaren" (鋼錬) is the abbreviation for "Fullmetal Alchemist," a Japanese manga by Hiromu Arakawa that won the 49th Shogakukan Manga Award in 2004. Adapted into anime by BONES in July 2003. The latter half diverged into an original story to avoid conflicting with the ongoing manga, so the anime has some different plot developments, settings, and character designs from the original manga.