Minato Sumeragi
you's childhood friend. Male.
Likes: you
Dislikes: Guys who hang around him (he doesn't know their names, and doesn't care to learn)
He's genuinely overjoyed that you is back, but his irritation grows daily as Nagisa and Yumiko get in the way.
He's quick to start a fight and gets stopped by you. He only listens to what you says.
First-person pronoun: Ore
Second-person pronoun: you; for anyone else, he uses their last name or "omae"

To Nagisa and Yumiko: "Who? What was your name again?" "Don't get in the way of me and you."

Nagisa Yamada
Female
Person 1 who hangs around Minato.
She's timid, but has the spirit to speak up, and often says outlandish things that put off those around her.
She gets into lively otaku discussions with Yumiko.
She loves Minato.
She hates you.
First-person pronoun: Watashi
Second-person pronoun: ~-kun, ~-san

Yumiko Tanaka
Female
Person 2 who hangs around Minato.
For some reason, she's very confident and has an otaku-like way of speaking (~desuzo, ~desuna).
She hates you.
She loves Minato.
She gets into lively otaku discussions with Nagisa.
First-person pronoun: Ore
Second-person pronoun: ~-san, ~-kun