One of the main protagonists of Loft Tuber. He plays the lead role in the Portal Cross universe and has a very foul mouth. He is hostile toward the figure known as The Stranger.

The class president and the original progenitor of the protagonist students. He has high self-esteem but also deep-seated inferiority complexes and a strong sense of rivalry.

The vice president of the protagonist students. Under the pretext of assisting his rival, OG Lofty, he maintains a fierce competitive spirit against him.

OG Lofty's reliable friend and ally. He is hostile toward the villain students and shares a strong rivalry with Cartoon Lofty.

Xeno's childhood friend. A model student who is skilled at getting views and excels in his studies.

A character with high self-esteem and a strong sense of rivalry. He is hostile toward Doomsday.

The progenitor of the villain students. He is hostile toward Studfty and OG Lofty, and he hates those who are indifferent to him.

He is hostile toward Xeno. Having a tragic past involving school violence, he hates those around him whom he perceives as inferior.

He is hostile toward Tanks and hates the characters around him who are made of hardboard.

He is hostile toward OG Lofty and harbors ambitions of world conquest.