PROBLEM TO BE SOLVED: To mourn for a dead person for a long time without imposing a burden on a bereaved family or the like.SOLUTION: Trees 12 are planted in graveyard sections 13 of a graveyard 11, and remains are buried here. When a period indicating period information passes, contact destination information is notified of the transfer of the trees. When the trees are transferred, transfer place information and the contact destination information are stored in association with each other in a memory, and original contact destination information and date information of a burial information memory are erased. When there is access from a contact destination with a correct password, image information of a camera is distributed to the contact destination, transfer place information after the transfer of the trees is transmitted, and burial place information before the transfer of the trees is transmitted.SELECTED DRAWING: Figure 1
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