is a Japanese manga series written and illustrated by Kazuhiro Fujita. It has been serialized in Shogakukan's manga magazine Weekly Shōnen Sunday since May 2025.

Plot In 1820, the Japanese scholar Hirata Atsutane encounters a peculiar boy named . The youth speaks with an unsettling maturity, and he reveals a fantastic secret: he is not from this era. Torakichi claims to have been spirited away by —supernatural beings of the mountains—and brought from the future. Having traveled through time, he now exists in a rejuvenated, childlike body. Under the alias , he begins to recount his incredible and otherworldly experiences to the fascinated Hirata.

Publication Written and illustrated by Kazuhiro Fujita, Silver Mountain started in Shogakukan's manga magazine Weekly Shōnen Sunday on May 7, 2025. Shogakukan released its first volume on September 18, 2025. As of September 16, 2026, five volumes have been released.

Reception The series was nominated for the 2025 Next Manga Award in the print category and placed 15th; it ranked fifth in the same category in the 2026 edition. It ranked 13th on Takarajimasha's Kono Manga ga Sugoi! list of best manga of 2026 for male readers. It ranked eleventh in the Nationwide Bookstore Employees' Recommended Comics list of 2026.

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