- "I'm... I'm sorry. Erm, well... Uhm, boss. Actually, my daughter... well... she passed away."
- ―Yasuzou Murumatsu, apologizing to Ookawa for not showing up for work.
Yasuzou Matsumura (in the show credits it is incorrectly spelled Murumatsu) worked at Ookawa's liquor store. He had a daughter named Yasuyo. Ookawa always called him "Matsu". He phoned Ookawa to tell him that he didn't make it to work because Yasuyo died, only to have Ookawa throw one of his customary screaming fits at him over the phone.
When the battle against the shiki began, he was bitten by Yoshie Kurahashi, who gave him a pistol, and ordered him to kill Toshio Ozaki. However, he shoots and kills Atsuko Yasumori instead. He is then killed by Ookawa.