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An Oldman in Counterworld
También conocida como: Grandpa Is Summoned, Grandpa Will Go, Jiisama ga Iku, Ojii sama ga Iku, Updating, Старик в параллельном мире, じい様が行く, 爺爺去了異世界 · Jiisama ga Iku · Grandpa is Summoned · じい様が行く · Jii-sama ga Iku · An Old Man Goes · An Oldman in Counterworld. · Grandpa Will Go · Старик в параллельном мире · 爺爺去了異世界 · Jii-sama ga Iku
While protecting his grandson from a burglar, Seitaro Asao, a tea plantation owner, gets stabbed to death. A slight mix-up by a goddess gets him, instead of his grandson, accidentally summoned to another world. Seitaro accepts to take his grandson's place and starts his new life in the new world as a man ten years younger. Things are quite eventful from the start, but the gods work in mysterious ways, and wisdom and protection from the goddess helps him overcome all obstacles.