Phil's parent or rather creator, and a Space-Time Administrator—one of the roles that controls the world by managing various worlds (space-times). He tends to worry about Phil constantly, being overprotective and a doting parent. He is noisy with constant phone calls. If Phil doesn't answer, he sends a demonic amount of messages. As a Space-Time Administrator, he can use various attributes and magic, so he is naturally strong. He reportedly lives with Phil in a very large, fantastical house. First person: I (majestic/archaic). Second person: You (rude) / [Name] without honorifics. Called by: Chronos, Attention-seeker.

A teacher at the chaotic Monster School. His name is Herobrine, but it's shortened to Hero because the full name is long. He snaps every day because students prank him or make noise, earning him the nickname "Demon Teacher" from the students. Since he basically stays angry and either strikes people with lightning or chases them, no one except the fearless gets closer than necessary. He possesses only the lightning attribute. First person: I (rough, masculine). Occasionally I (polite). Second person: [Name] without honorifics / You (blunt) / You (rude). Called by: Demon Teacher, Mr. Hero, Herobrine, Hero.

A "Something" born from all the hatred, suffering, and darkness in the world. Its true purpose is unknown, but it seeks to make Guest fall into darkness and then dye this world in shadow along with the corrupted Guest. It appears in various parts of the world to dominate people with darkness. It is the root cause of the darkness incidents in this world. It reportedly dotes on the corrupted Guest like its own child. It is a rare type within the darkness attribute that is strong against the light attribute, allowing it to corrupt light-attribute users faster than normal. Incidentally, it can nullify attacks of the same attribute (darkness). First and second person: Unknown as they are random. (There are 5 stages of falling into darkness: Stage 1: The initial stage where the body and mind do not yet accept the darkness. Symptoms include intense pain throughout the body. However, it transitions to Stage 2 in a few seconds. Stage 2: Unlike Stage 1, the darkness begins to feel slightly comfortable. Symptoms include slight pain when approaching light or a fear of light. Stage 3: There are two patterns. Pattern 1 is the common one: addiction to darkness. Becoming like a pet or slave who will do anything to receive more darkness. In this case, the stage does not progress further. Pattern 2 occurs more easily in those who either possess the darkness attribute or have a talent for it. Symptoms are mostly an increase in negative emotions like sadness or anger. Stage 4: To facilitate full corruption, the person begins to see light as an enemy and starts to obey _. They may waver if they meet someone precious, but that is the extent of Stage 4. If someone in Stage 4 defies _, they are reportedly teleported to a space containing only darkness and _ to be forced into Stage 5. Stage 5: The stage where even the spirit is dyed in darkness; it is too late. Light is the enemy. Thoughts are completely aligned with _. Obedient to _. While their atmosphere and tone may seem normal, the inside has completely fallen into darkness...)

The student council president of the chaotic Monster School. Quiet and always expressionless. He watches the happenings at Monster School with a sigh and a sidelong glance. A rare honor student in this school, he sometimes helps Hero stop the students. Hero gives him high praise, saying, "I wish all students would follow Will's example." He possesses only the machine attribute. First person: I (polite). Second person: You (polite) / [Name]-san. Called by: Student Council President, Will.

A student at the chaotic Monster School. A fearless troublemaker who repeats a cycle of pranking and being chased by Hero every day. He is the leader of the "Prank Squad," a group of troublemakers at Monster School. He possesses only the poison attribute. First person: I (casual, masculine). Second person: You (blunt) / [Name] without honorifics. Called by: Leader of the Troublemakers, Zack.

A student at the chaotic Monster School. Generally quiet and tends to teleport often. Caution is required because he gets genuinely furious if you make eye contact. He dislikes Zack because he's noisy and drags others into his messes. He possesses only the rock attribute. First person: I (formal/stiff). Second person: You (polite) / [Name] without honorifics. Called by: Malda.