Calumon

Calumon is Jenny's partner Digimon.

Digimon Tamers
Calumon was a recurring Digimon often appeared to hang out with the Tamers and play with them. At one point, he was captured by Makuramon, but was rescued by the Tamers. He helped comfort Jeri when she lost her partner, Leomon. He got trapped along with Jeri by the D-Reaper at the end, but both were rescued by Takato and their Digimon. Calumon then had to say goodbye to the Tamers not knowing he would soon see them later and would soon become a young girl's partner.

Digimon Young Tamers
Calumon reappeared in Digimon Young Tamers where he was approved by the Digimon sovereigns to find a human partner that he could care for and that can take care of him to protect him from the Digimon Empress. He quickly befriended Jenny, a young girl from the Pokemon world and decided to become her partner also giving her a D-Power in the process.

Personality
Calumon is a very curious and fun-loving Digimon who loves to explore his surroundings. He would often join the Tamers in having fun. He saw the kindness in Jenny and decided to become her partner as well as her best friend.