After spending three hard years working at an exploitative company, Akira Tendo's spirit is broken. But suddenly, there's a zombie pandemic and Akira finds himself being chased by hordes of the undead.
Seeking to reclaim three years' worth of unused vacation time, Akira spends his days being lazy, day drinking and ignoring the chaos happening in the world. Unfortunately, he's down to his last beer.
Akira's made his way to Shinjuku to see Kencho, the only friend he's still in touch with. Kencho went on to become a successful member of society, but now finds himself in a life-or-death situation. Will Akira be able to save Kencho?!
After being chased by zombies, they escape into a department store where they run into three flight attendants. As they introduce themselves over some drinks, Akira and Kencho realize this is the get-together they've always dreamed of!
After remembering his childhood dream, Akira goes to the aquarium to grab an important item he needs. Having found what he'd been searching for, he encounters a group of survivors who are being chased by zombies.