Jam

Jam (ジャム, Jamu) was a mage in of team Io and was part of the Day Breakers clan.

Jam was killed in Parano before team Haruhiro got there, as such he never appears in the story, and we only know of him through Io's story.

Plot
While in Parano he was dragged off by dream monsters and transformed into a half-monster, then killed by his teammate.