Cubic

AREA OF RESIDENCE: Cube's soul(?) ? (in preview)
SPECIES/SHAPE: Cube
COLOR: Pink

WEAPON TYPE: Controllable
STATUS: Defeated
ALIGNMENT: Evil

FRIENDS: Dub, Lycanthropy (As stated in episode 4 by his reaction after seeing the cube)

ENEMIES: Cube, Cyan

Cubic is the currently "deceased" corrupted counterpart of Cube. He was hiding within Cube's soul before purification, but it is now assumed Cubic is gone as of the beginning of Episode 6.

Cube was corrupted by Acrilimus, making him part of Dub's infection. In Episode 3, Cube wakes up in an unknown place. An unknown voice informs him that he's inside his soul ("You're inside your soul, idiot"), and his virus then floats to a platform, revealing itself to be Cubic.

Like other corrupted shapes, Cubic is reddish-pink in color. He is a cube, however, he has a face showing two evil slanted eyes and a wicked smile, which may be accompanied by an additional vertical line on his right eye to resemble a tear. His eyes can transform into gears, with the left eye showing a pink pupil. His right eye can also transform into a replica of a saw blade. He wears a black robe with pink edges and pink checkered buttons, a dark magenta-pink shirt(?) with a white octagram symbol on his chest, and a pink scarf. He has black boots with bold pink lines. Unlike Cube, Cubic has light pink hair.

Cubic continues, telling Cube, "You and I are the same shape now... I'm a part of you," which Cube denies, causing Cubic to reveal his claws and pin Cube to the wall of his soul. Cubic reminds Cube of the doubts that had been filling Cube's mind, which Cube agrees happened, and that even if he felt uneasy about being a caretaker, he wouldn't give up on Cyan. Cubic replies, "Oh, I know you won't. With your bond with Cyan, I'll just get stronger..."

When Cube wakes up, realizing his attempt to punch his corrupted self resulted in him trying to punch Cyan, he decides to tell the other caretakers about his situation. However, their advice—to fight alongside Cyan and strengthen his bond with Cube—startles him, reminding him of what Cubic said that night.

In Episode 4, Lycanthropy appears, and upon its appearance, Cube's infection expands. Lycanthropy seems to be the only one to discover this, quietly begging Cubic to appear. Unfortunately for him, the corrupted persona does not emerge.

In Episode 5, Cubic is inside Cube's soul, likely very bored. Dub then calls him, asking for the information he gathered from Cube. At first, Cubic is confused, but Dub reminds him who he's talking to, and Cubic reports his findings. Cubic tells Dub that Cube, despite being in a very sad state, will not stop bonding with Cyan, soon giving him enough power to take control of Cyan's caretaker.

After the "monster" cube asks Cubic to come here, he uses his saw, is half-corrupted, walks creepily, raises his arms, and grabs Cintagon and Iris.

In the reworked version of Episode 6, Cube is freed from Cyan's corruption, vanquishing Cubic.

Cubic briefly makes a cameo on Page 14 after Dub states that his Paradise will be his.

Cubic is based on the JSAB Level, Close to Me.
Since Episode 6 (aside from its beginning part/preview) is no longer canon based on PCC, Cubic is no longer classified as a clone.

Cubic can extend up to two claws at a time, the same shade of pink as his scarf and the same shape as his corrupted form. They can be used to restrain an enemy or grab projectiles. The downside is that if the grabbed object pulls hard enough, Cubic can be dragged along with it. At some point, the claw will detach from him, and he will be forced to grab onto one of the floating nodes.