Haikei, Niisan-sama — Release & Event Calendar
Events, manga release dates, and figure pre-orders for Haikei, Niisan-sama in one place.
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Monday, June 1, 2026
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拝啓、兄さん様の作品Hub
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Browse events, manga release dates, and figure pre-orders for Haikei, Niisan-sama in chronological order. Each entry links through to the event detail, figure listing, or work hub.