When Sato-kun died..
Complete | Yamagata aona, 山形あおな | 2019 released
I know..his backstory is going to be sad..I am fully prepared..oh,and from what I heard,people turn into zombie after they died because they have some unfinished business or something..anyway,should wait for more chapter for detail explanation Ch 5 angst Ch 7 end...saddd
Apocalypse No Toride