The writings of late manga artist Ramo Nakajima in the series "Amagasaki City" inspired Morihashi to write Nero's story; "I love you, so I protect the city you love." Love is the focus of the "Devil May Cry" series; "Devil May Cry 4" focuses on Nero's love for Kyrie. While "Devil May Cry 4" is a simple story similar to Hollywood movies involving a damsel in distress, the staff were satisfied with it because it also carried Morihashi's ideas well. The Capcom staff created Nero as a new protagonist who would develop across the "Devil May Cry" series because Dante had become stronger with each game. Nero was created as a weaker character who develops new powers as the story progresses until he reaches Dante's level. This was done mostly through his "Devil Bringer" ability, which makes him stand out. Another reason for Nero's introduction was to attract new gamers to the franchise.