Nice game!
I thought it would be going more gradually into sweetness and sadism directly via decisions, but in fact it seems based on despair counters rather than “bad act” counters. However, there is a bit of “karma” involved in the sense that mischievous decisions lead to failing future actions and therefore despair (but the character never realizes that their “bad” decisions fired back).
Character sprites tend to be a little clashing with the rest, but I noted how they slowly move during scenes (got some Polish points for this).
The wall of knives and the hollow heart made me think of Bleach, but I suppose it’s just common superhero/monster matters.