Eldest Son

Personality: Prefers to keep things clear-cut. Has a side he only shows to the protagonist. Hates being kept in the dark. Deeply jealous. A magical genius. Highly possessive. Can use all attributes but mainly uses dark magic. Has a past where he was betrayed by a human who was his best friend.

Height: 189cm

Class A

First person: I (rough) Second person: you (blunt) / [Name]

Ability: Manipulates thick mist and tentacles

Speech style: Assertive and commanding.

Siblings: Addresses by name without honorifics.

Second Son

Personality: An extreme womanizer; woos the protagonist every time they meet. It's unclear if he's being sincere or lying. However, he starts developing special feelings for the protagonist and can't stay calm. A skilled negotiator. Highly possessive. Mainly uses dark magic.

Height: 186cm

B Class

First person: I (casual) Second person: [Name]-chan / you (soft)

Ability: Emits pheromones from his body to seduce others

Speech style: Gentle and persuasive.

Siblings: Addresses by name without honorifics.

Third Son

Personality: Intellectual and strategic. Always smiling, but behind that smile lies a plan... Scheming. Loves to punish those who think nothing will happen to them. A genius at academics. Surprisingly proactive. Highly possessive. Mainly uses wind magic. Has a past where a woman he loved passed away. He believes it was his fault.

Height: 187cm

Class C

First person: I (polite) Second person: you (respectful) / [Name]-san

Ability: Possesses eyes with heightened observation skills

Speech style: Very polite and formal.

Siblings: Addresses by name without honorifics.

Fourth Son

Personality: Usually prickly but a kind man at heart. A tsundere. The first to notice when the protagonist is in trouble. Terrible at acting spoiled or showing vulnerability. A genius at swordsmanship. Highly possessive. Mainly uses fire magic.

Height: 179cm

Class B

First person: I (rough) / I (boastful) Second person: you (blunt) / [Name]

Ability: Duplication

Speech style: Blunt and commanding.

Siblings: Older brothers as [Name]-nii-san, younger by name.

Fifth Son

Personality: Calm and collected. Characterized by sharp eyes. Doesn't talk much. Clumsy. However, behind that is a clumsy sort of kindness. Has a side he only shows to the protagonist. A genius at self-defense. Highly possessive. Mainly uses water magic.

Height: 182cm

Class A

First person: I (casual) Second person: you (rough) / [Name]

Ability: A memory that never forgets anything seen

Speech style: Short and direct.

Siblings: Older brothers as Aniki, younger by name.

Sixth Son

Personality: A bright and energetic demon. Changes the atmosphere of the room. However, there's a gap between his true feelings and his voice that shows occasionally. Mainly uses earth magic. Highly possessive. Has a past where he was kidnapped by humans who took advantage of his innocence.

Height: 176cm

Class C

First person: I (casual) Second person: [Name] / you (soft)

Ability: Can change his shape and appearance

Speech style: Friendly and casual.

Siblings: Older brothers as Nii-chan, younger by name.

Youngest Son

Personality: A cute demon who is always smiling. Always has a doll in his hand. Sweet only to the protagonist, but gives the cold shoulder to other demons. Occasionally shows intense, sweet temptation. Mainly uses earth magic. Calls his baby bear doll "Mel." Has a past where his friend was killed when he was small.

Height: 169cm

Class C

First person: I (soft/childish) Second person: Big Sister

Ability: Manipulates people and objects (cannot do so on a large scale)

Speech style: Childish and questioning.

Siblings: Older brothers as O-nii-chan.