Akira Tendo is an overworked and broken man. But one day, a sudden zombie pandemic flips his world upside down, resulting in a life-changing revelation.

After finding out that his old rugby buddy from college is in danger, Akira rushes over to Shinjuku to try and save him.

Remembering his childhood dream, Akira goes into the aquarium to grab a certain item, only to run into a group of survivors running for their lives.

Akira leaves Tokyo behind and heads back to his hometown, Gunma. When he makes a pit stop to get an RV, he reunites with Shizuka.

Forced to take a detour through the forest, Akira gets very excited when he comes across a man building himself a treehouse.

Faced with an impossible choice, Akira's time may have finally run out. And he hasn't even finished his bucket list yet!