Pop  

Seratonin, ポップ

The CEO of Leek Cartridge, a video game company known for its poor performance, is named Pop and has transformed into the grey bunny character called Seratonin through the use of a "digital clock wind" wristband. Upon transformation, she declares "Come out, Seratonin!" and can summon wild birds with a whistle. She is easily recognizable by her dark skin and habit of wearing hats. As the one who devises strategies to combat monsters, Seratonin is responsible for promoting happiness in the brain due to being a chemical associated with this emotion. This information was obtained from Wikipedia.