Brothers (naruse Yoshiki)ブラザーズ (成瀬芳貴); 兄弟 (成瀬芳貴); 兄弟驱魔师—BROTHERS

From Neptise Scans: Dracul's presence threatens humanity and the only ones who can stop them are the Exorcists, siblings bound by blood and granted the power to purge evil. The story centers around Vincent and Ryan and their struggle to become full-fledged exorcists.