"There was once a nation that killed the ones they summoned, only to find that summoning ceased to succeed thereafter. Thus, I shall let you live and return. Be grateful for the noble sacrifices of your predecessors."... more>>

Hayato Kumakura, who was summoned to another world three years ago, was sent back to Earth after the demon lord was defeated.

But on Earth, zombies had been appearing for the past three years.

Hayato, who possesses the abilities of a transmigrator, dominates in a world overrun by zombies. <<less

"A country once killed those it had summoned, cause summoning rituals to fail thereafter. Therefore, I shall spare your life. You should be grateful for the noble sacrifices of your predecessors."... more>>

Three years ago, Hayato Kumakura was summoned to another world. After defeating the Demon Lord, he was sent back to Earth.

However, upon his return, Earth had been plagued by a zombie outbreak that started three years earlier. Armed with the powers of a summoned one, Hayato dominates in a world overrun by zombies. <<less