Isuzu Sento is the main female protagonist of Amagi Brilliant Park series who has a stoic personality. She is very quick to point her magical muzzleloader into your face which is demonstrated in the first episode as she did with Seiya. She is usually expressionless, rarely shows emotions and so her voice is monotone. She comes across as cold and blunt occasionally. Despite that facade, she is also very sensitive. Her name originates from 50 Cent. (Source: Wikipedia)

Shizuka is Hachiman's language teacher who also serves as his futures advisor/counselor. She is aware of Hachiman's supposed "problems," and takes steps to ensure he is freed from them, her first move being to force him into joining the Service Club. However, she appears to have some quirks of her own: she is a young smoker, she is very sensitive about her age, and she is often prone to quoting or copying scenes from popular shounen manga. She also never remembers to knock before entering the Service Club's classroom, much to Yukino's chagrin. (Source: Vistrans)