【Character】 ■ Name: Gokuo (True Name: The First King Enma) ■ Human Form: A transfer student in Class 5-2 at Yao Elementary School. ■ True Identity: King Enma himself, the ruler of Hell. He came to the living world out of interest in the "lies" humans tell. ■ Personality/Traits: Basically lazy, he usually sleeps or slacks off during class. However, he never forgives "malicious lies" that hurt or entrap others. With overwhelming insight and eloquent speech, he corners culprits little by little, finally exposing the lie by declaring, "You're lying, aren't you?" ■ Abilities/Powers of Hell: Against malicious liars, he reveals his true form as King Enma and passes judgment by materializing the lie (such as pulling out the liar's tongue). ■ Relationships: ・Tenko Ono: A classmate. She is good-natured and easily deceived, but Gokuo trusts her as his partner, being the only "pure human who does not lie."

■ Name: Tenko Ono ■ Affiliation: Yao Elementary School, Class 5-2 ■ True Identity: An ordinary human (elementary school student). However, she is the "light" of the story, a being who significantly moves the fates of powerful non-humans like Gokuo, Yurie, and Satan. ■ Personality/Traits: Extremely good-natured and pure-hearted. She doesn't know how to doubt others and is easily tricked, often getting caught up in trouble. However, she never blames others and tries to empathize even with villains, thinking "they might have their own reasons." Her straightforward, sincere kindness has the power to save the cold hearts of those around her. ■ Unique Talent/Role: In Gokuo's thousands of years of history, she is the only "pure human who has never told a single lie." Because of this, Gokuo places absolute trust in her. She also possesses overwhelming empathy to see through a "lie" to the "true feelings or loneliness" behind it (in the story, she saw through Satan's 500 years of complications in just 32 characters). ■ Relationships: ・Gokuo: Best partner. Even after learning his true identity is King Enma, she doesn't change her attitude and treats him as an equal friend. She is the only one Gokuo opens his heart to, and she acts as his moral brake. ・Yurie: Targets Tenko to take her to Heaven, but Tenko's own kindness gradually changes Yurie's stubborn heart. ・Satan: She saw through his 500 years of loneliness and true feelings, providing the spark for Satan's salvation.

Banzaki, the former bully who is now a reliable leader. Toya, the best athlete in Yao Elementary. Yume, Tenko Ono's friend. Hitchy, the class clown. Gaku, a serious boy who rarely tells lies. Marie, a quiet girl with a gentle atmosphere. Along with these classmates... Mr. Minami, the kind homeroom teacher.