Zombie-Loan - 1x06 - Season 1, Episode 6- Followmy.tv

As Shito and Chika battle Shiba, a flashback is shown to show how Shiba became a zombie. During the flashback, Shiba was tired with the same monotonous life he has, so he commits suicide. However, he meets with an unknown figure promising an "unboring" existence that leads to becoming "free" of his previous, dull life. Wanting to be free, Shiba agreed to work for the person who made him a zombie. Meanwhile, as Shiba is about to fall off the roof, Chika takes hold of his hand, but as Shiba falls, a shinigami comes to take him away. After the situation with Shiba, the others ponder about what happens after zombies die.