First-Name Basis/Quotes

Ayumi: A, Ai...
Haibara: ...Go ahead, you can call me by my first name.
Ayumi: Eh?
Haibara: That's what you want, right?
Ayumi: Really? Ai-chan!
Genta: Th-then...
Mitsuhiko: Can we also call you...
Genta/Mitsuhiko: Ai-
Haibara: But not you two.

Genta/Mitsuhiko: -chan...

—Detective Conan, Chapter 400

"Everyone else who lets me ride on their dinosaur calls me Carlos."

—Carlos Ramirez, Dead Beat

Subaru: Nanoha-san... Ah! Instructor Takamachi... Lieutenant?

Nanoha: Nanoha-san is fine.

—Magical Girl Lyrical Nanoha StrikerS Episode 2

(Agent Coulson walks into the room)
Pepper: Phil!

Tony Stark: Uh, his first name is Agent.

—The Avengers