I noticed some unusual honorifics used in the Shokugeki no Soma anime series:
- Yuki Yoshino tends to use "-cchi", as in "Erinacchi" or "Takumicchi"
- Terunori Kuga tends to use "-chin", as in "Yukihira-chin"
- Momo Akanegakubo tends to use "-nyan" or "-myan"
Akanegakubo's usage was described as a personal affectation to describe people that were cute (and also to look down on them a bit), but are the first two actual regional usages or due to a personal style/usage of the speaker?