Kisa is a fellow editor in the Emerald department, and because of his "baby face" he is mistaken for being much younger than his true age of 30. He's never been in a serious relationship and doesn't think himself capable of being in one because of his tendency to fall in love for only good looks without knowing a guy's personality. Because of this, he immediately questions his feelings for Kou and doesn't hold out much hope for a relationship with him. His mentality can be described by his line: "love at first sight works well enough in a manga, but this is reality."
(Source: Wikipedia)
