Grandpa is Summoned

Seitarou Asao, a caretaker of a tea plantation in his seventies, is the protagonist of the story. By coincidence, he gets transported to another realm and finds himself living as his grandson. Thanks to magic that eliminated ten years, he becomes rejuvenated and is now sixty-three years old. Despite being in an unfamiliar place, Seitarou utilizes his vast knowledge and expertise in "support magic" to thrive and enjoy a comfortable life.