Kouji is the father of the family trio, who worked alongside the 2 son, Len and Masaki. They initially went missing when searching for supplies in the mall.
Kouji wear a rounded glasses and sports a very long white beard, wears a blue coat, a white shirt and gloves, and brown pants.
He is very loud and assertive, and always have a very smug and enthusiastic expression.
He also appears to have fast reflexes, implied by dodging a cat that is extremely agile and taunting them while at it.

Unfortunately, he was infected after buying some time for his son to escape by slowing down the 2 cat that attacked them.

(Source: Nyaight of Living Cats EP6)