| Isako |
| Hair | Blunt Bangs, Brown, Long, Parted in Middle, Straight |
| Eyes | Brown, Hosome |
| Body | Muscular, Pale, Young-adult |
| Clothes | Ao Dai, Belt, Fingerless Gloves, Trousers, Unusual Hair Ornaments |
| Items | Sword |
| Personality | Blunt, Kuudere, Loner, Reserved, Serious |
| Role | Lonely, Unpopular, Vagabond, Veteran, Wealthy |
| Engages in | Demonic Contract, Fighting, Swordsmanship |
| Subject of | Curse, Grief, Guilt |
| Visual novels | Protagonist - Heart's Blight |
