A first-year student at Solsiel Magic Academy. His grades in magic are excellent, but he has been absent from school for over a month. Considering he summoned Devilun just because he was lonely and needed a friend, it is assumed he has some personal circumstances. He has a terrible sense for names, which Devilun constantly teases him about. He possesses the ability to manipulate Save and Load magic. His medium is the grimoire he usually carries, which manifests as the menu buttons seen during play. If he is in a situation where he cannot use the grimoire (e.g., it is stolen or he cannot see it), Save/Load is blocked. He has a strong resolve and recovers quickly even after suffering physical or mental damage. In particular, he almost fainted from pain when he first awakened his Magic Eye, but after experiencing it once, he endures it so well that he doesn't even show he's hurting. He can even resist and break free from brainwashing magic through sheer willpower. His pain tolerance is incredible. He has more of a perverted streak than one might expect. His tail is large, and he is fluffy all over. He makes money by taking pictures of Devilun being tickled and selling them. In return, he cooks delicious meals (he is a good cook).

A Makemon with white fur, floppy ears like Cinnamoroll, small wings, and an angel ring. He always has his eyes squinted in a smile. Like his cute and cozy visual, he is polite and uses formal speech. However, contrary to this cute side, he has a dark interior. His frequent exclamation is "Kyupa." He likes custard pie. He says he doesn't like raspberry pie much because it's sour. The two triangles protruding from the sides of his head are earmuffs, which are said to be trendy among angels. He dislikes strong stimuli: the scent of garlic, salty flavors, high-density mana, etc. He usually calls Devilun "Devi-kun." Cupidoel himself was worried about what to call Devilun and expresses gratitude to the summoner who gave him the name Devilun. The eye on his belly is unstable but has the power to see the truth. His hobby is bondage. This is his true form when he has sufficient mana. Unlike his small form, he usually keeps his eyes open. Big Cupidoel: A form that has grown larger by obtaining mana. He hates himself for having impulses unbecoming of an angel and has a habit of hiding his true feelings. He has a large tail. He likes Devilun more than Solomon.

A fallen angel chef serving BBB. He is cynical, but his cooking skills are top-tier. He truly loves and follows BBB, but due to his distorted emotions, he often acts roughly... He dislikes Devilun. Angels are usually intersex, but perhaps because he is a fallen angel, he is clearly male. A chimera of a spider and an eagle. He spits webs and builds spiderwebs. When he was an angel, he had only one wing. After falling, he grew the other wing. Like BBB, he has a sandbag-like pouch on his belly. He has a total of 6 eyes (2 on each side of his forehead and 2 eye spots) and 6 arms, unlike BBB who has 4. The name 'Nisroch' was given to him by BBB. He had no name when he was an angel, but gained one after becoming a fallen angel. In the comic, he casually asks BBB to eat him, suggesting he has masochistic tendencies. His nickname is Nisrock. His gender is male. His fur is fluffy. He shrinks when his mana is low. He does 'good things' with BBB every night. He uses formal speech.

A Great Demon who appeared suddenly. He acts with Devilun in mind, but...? He protects fallen angels in a demonic greenhouse called the 'Orchard of Corruption' and supplies them with mana. A chimera of a dragon and a fly. When he flies, he flaps his wings at incredible speeds like a fly, and this is often described with a "BBB..." sound. He can also transform into a hideous dragon form with a fly's head called 'Gluttony' (mixed with termite traits). His body color is white, and in Gluttony mode, he seems to eat wooden buildings. (Gluttony mode: eating everything in sight when he has bad thoughts about food or when such events occur.) He has Nisroch as his exclusive chef. If BBB has eaten food elsewhere, Nisroch inspects him by sticking his hand into BBB's belly pouch to pull out the junk food. His name is read as 'B-Three.' However, he is also called 'Beel' or 'Bubu' by some characters, including Devilun and Nisroch. Once, to punish a low-level demon who wouldn't return mana, he put the demon in his pouch and tried to make it explode by pumping in excessive mana, but that demon endured it. BBB became interested and kept infusing mana, resulting in that low-level demon growing into the current Devilun. In a way, BBB is the one who sat him in the position of the Demon of Sloth once he gained enough power through artificial mana infusion. Simply put, BBB is like a father figure to Devilun, and BBB feels a significant sense of responsibility toward him. He calls Devilun 'Bel.' His favorite fruit is pomegranate. Sometimes he brings dishes made by Nisroch to Solomon's house to share. His fur is fluffy. He shrinks when he has no mana. His tail is large.