To scatter ashes on the water such as the sea or river by using a drone.SOLUTION: Remains of the deceased and bones of a pet are made into powder having, for example, a diameter of 1 mm or less. Next, the powdered bones are put in a water-soluble bag or container. Alternatively, the powdered bones are mixed with a hydrophilic and water-soluble binder, and is molded into a molded article 300 in a predetermined shape (e.g., a shape of a grave). The molded article 300 is water-soluble. Then, the bag or container or the molded article 300 is transported on a water surface by using a drone 100, is made to descend toward the water surface from the drone 100, and is made to land on the water. Thereby, the ashes are scattered on a river or the sea.SELECTED DRAWING: Figure 1【課題】ドローンを用いて海や川等の水上で散骨する。【解決手段】故人の遺骨やペットの骨を例えば直径が１ｍｍ以下の粉末状にする。次に、粉末状にされた骨を水溶性の袋または容器に入れる。または、粉末状にされた骨を親水性かつ水溶性の結合剤と混合して所定の形状（例えば、墓の形状）の成形物３００に成形する。成形物３００は水溶性である。そして、ドローン１００を用いて袋または容器もしくは成形物３００を水面の上に運び、ドローン１００から水面に向けて降下させて着水させ、川や海で散骨する。【選択図】図１
