Horror Knight

From Inga no Kusari wiki

Horror Knight is Hyunsoo Chae's fullbring. A "clone", though not a carbon copy of Hyunsoo, appears and fights alongside her. She is fully visible, but cannot be hit, as the clone is just a shadow image of Hyunsoo clad in a different outfit.

Fullbring Abilities

It is incapable of fighting alongside her independently; the clone follows and copies her every move, effectively making her hit twice for every attack. The clone has 50% of Hyunsoo's current melee points.

Strengths

Coupled with even a half-charged Despair Witch, Horror Knight is capable of going toe-to-toe to enemies that Hyunsoo wouldn't dream of touching. Horror Knight also scales with Despair Witch, the percentile factor increasing with every hit Hyunsoo takes.

Weaknesses

Horror Knight is not a meatshield. Hyunsoo takes every hit thrown at her with no damage to the clone. Also, the clone seems to display its own agendas and a mind of its own at times...