KICA-251
https://vgmdb.net/album/23568
Character Comment
KICA-263
https://vgmdb.net/album/23569
Shy.OP -
https://vgmdb.net/role/4665 most likely as the "Syn" sound is usually rendered as "Shin/シン" so perhaps a mistake was made in romanization here where "h" somehow made it in.
Along with "OP" here strongly pointing towards "Operation/Operator".