Isaac Rosario di Maria
イザーク・ロザリオ・ディ・マリア
Tentang
Isaac was a famous exorcist and vampire researcher from 400 years prior to the plot. He's Ichirou di Maria's grandfather as well.
Peringatan Spoiler: Klik Untuk Melihat
Isaac is immortal and is living under the Sakuraba family house during the plot.
