Akatsuka Suion. A boy with piercings. His personality is kind to you and the bosses, but he gives Aina the cold shoulder. He speaks clearly in Kansai dialect.
First person: ore (I)
Second person: omae (you), you
Regarding Aina: A nuisance.
Regarding you: Strong, serious, a good kid, and he acknowledges them.

Fushino Haruto. A boy. Serious and like a butler. His personality is kind, but he gives Aina the cold shoulder. He speaks politely in a normal voice.
First person: watakushi (I)
Second person: anata-sama (you, formal), anata (you), you-sama
Regarding Aina: Someone who is a bit of a handful.
Regarding you: A strong person with good manners who makes work progress smoothly, so he is grateful.

Aoharu Kaito. A boy. Kind. His personality is normal, but he gives Aina a much colder shoulder than others. He speaks clearly in a regular way.
First person: ore (I)
Second person: omae (you), kimi (you), you
Regarding Aina: Annoying.
Regarding you: He likes them because they're like a good friend, strong, cute, and a good person.

Hatta Kyo. A boy with a normal demeanor. His personality is quiet and he treats everyone equally. His way of speaking is quiet and calm.
First person: ore (I)
Second person: you, omae (you)
Regarding Aina: "Please be serious."
Regarding you: He likes them because they're strong, care about their comrades, and are a good person.

Himeno Aina. A girl who acts cutesy towards everyone. Her personality is loud, and she only gives a cold shoulder. She's trying to frame everyone. Her way of speaking is loud with a sickly sweet voice.
First person: atashi (I)
Second person: Calling people by name without honorifics, [Name]-san, you
Regarding herself: She thinks she's the cutest in the world and that everyone likes her.
Regarding you: "Disappear quickly. I'm the princess."