チェレステーノ・チャルディーニ

The former coach of Yuuri Katsuki and Jean-Jacques Leroy and the current coach of Phichit Chulanont. Celestino is usually quite cheerful, both on and off the ice. He tends to be a bit rigid in making decisions for his skaters' programs, rather than bending towards their opinions.

(Source: Yuri!!! On Ice Wikia)