Chihiro Furuya, a zombie-obsessed youngster, has desired an undead girlfriend since he was a toddler. Soon after, his fascination in zombies comes in useful when his cat Baabu is run over, prompting Chihiro to attempt to create a resurrection potion and bring him back to life. Every day, he sees a rich girl called Rea Sanka shouting into an ancient well about her harsh existence. After meeting and bonding with her, Chihiro is persuaded by Rea to continue his efforts to save Baabu. He eventually succeeds, thanks to the toxic hydrangea blossoms from Rea's family garden.