Callidrymon is a unique Fairy Digimon, whose name is derived from A. callidryas (Lat: beauty + tree nymph), the red-eyed tree frog. As the digivolved form of Ranamon, Callidrymon owes her heritage to AncientMermaimon. Because all Ranamon are created through the Human Spirit of Water, it was believed their only alternate form was the Calmaramon. However, through the fundamental amplification of a Digimon's raw data by a Digivice, a Ranamon's code may be evolved to the next level, conceiving Callidrymon. As such, Callidrymon shares many physical traits with her 'younger sister'. As an evolved form of a Human Spirit Digimon, Callidrymon is on par with Ultimate-level and Beast Spirit Digimon.