Yoshiki Yaegashi  

, 八重樫 良樹

Yaegashi is a computer nerd who uses analogy for TAC. On his free days, he plays hentai games on his computer. He also has software that detects Aragamis weaknesses and attacks while predicting which animal would appear on Momijis underwear. His relationship with Kome fluctuates between love and hate throughout the series.