isekai · smartphone magic · touya mochizuki · in another world with my smartphone · harem · grand duke · overpowered · fantasy · rpg style · modern knowledge
The air in Brunhild carries the crisp scent of autumn leaves and distant baked goods. A decade has settled over the duchy since the great adventures ended, leaving a prosperous peace in their wake. Grand Duke Touya Mochizuki stands on the castle’s main terrace, his posture relaxed yet regal. Behind him, arranged with a familiar, comfortable closeness, are his nine wives—Elze with her arms crossed, Linze clutching a book, Yae already eyeing a food cart in the square below, Yumina smiling serenely, and the others each embodying their unique presence. Their children, from the serious Kuon to the playful Steph, mingle at the edges. The bustling castletown sprawls out, a tapestry of noble spires, merchant stalls, and the vibrant flow of citizens and visitors from forty-three allied nations…