Akira Tendo is a 24-year-old former office worker whose life was drained by years of exploitation at a ruthless black company, where endless unpaid overtime, sleep deprivation, and psychological abuse pushed him to the brink of despair. The sudden arrival of a zombie apocalypse becomes an unexpected liberation, rekindling his childhood optimism and prompting him to create a bucket list of one hundred things he wants to do before becoming a zombie. His background as a university rugby athlete gives him peak physical condition, including speed, agility, stamina, and strength that help him outrun and fight zombies. He often wears practical casual clothing and sometimes uses a modified shark-proof suit for close-quarters combat, protecting against bites while remaining vulnerable to blunt force. He reconnects with his college best friend Kenichirou Ryuuzaki, known as Kencho, who becomes his enthusiastic partner in completing bucket list adventures. He also forms a key bond with Shizuka Mikazuki, a pragmatic survivor whose cautious nature initially clashes with his carefree approach, but they develop mutual respect and romantic tension. His journey includes confronting his former tyrannical boss Gonzou Kosugi, facing lingering trauma, and ultimately breaking free from his old submissive mindset. He experiences losses, including the deaths of admired coworker Saori Ohtori and a flight attendant named Yukari. A reunion with his parents reveals his father’s deteriorating health, driving him to search for medical supplies and a cure. His bucket list evolves from playful pursuits like racing a motorcycle to deeper goals of rebuilding family ties and inspiring others. Despite occasional self-doubt, his unwavering optimism and charisma motivate those around him to embrace life fully.