MEMORABLE_CAT

Starts thinking about their connections+parallels too hard and starts bashing into walls. One directly caused Three's current state. One caused Four along with the other Algebraliens to all run away. Three's previous actions broke One's trust, causing them to attack, inciting the incident that broke everyone apart. Three doesn't trust anyone, even Four, because of what they experienced with One. Four trapped One for 14 years causing her degraded state. Four chose to ignore all reminders of the past because of the connections to the incident. Four trapped One out of fear leading to her later return as vengeful. All three of them are inherently tied to each other and it keeps dragging them further down.

Starts thinking about how all three of them also connect to Pencil and starts killing people. One and Pencil were both trapped by Four. Pencil's experience of once being a leader but now increasingly falling apart into isolation from something she experienced out of her control matches Three's. She runs from her problems just like Four, preferring to be stuck in a cycle than address them. She lashes out with aggression and anger when she feels threatened, just like the other three. Her experiences are connected to an event she was never a part of. To a person she's never met. All the algebraliens, especially One, Three, and Four, are connected because of the incident, but Pencil has also been unwillingly dragged along