Korekiyo is an aloof and somewhat creepy person, but he is also very cool-headed and intelligent. Korekiyo Shinguji does believe in ghosts and souls, and has a strong interest in communication with the dead and death in general he tends to find noisy and vulgar people annoying, often asking them to be quiet. Furthermore, he also has a unique and somewhat creepy laugh, which sounds like "kehehehe". In the original Japanese, "kukuku" is his unique laugh's sound.