Back numbers of じゃがいも研究院 (中村六翅)
Back number list of じゃがいも研究院 (中村六翅). Displays exclusive contents for each plan, such as "無料プラン", "じゃがいも研究員", by posting month.
※ Except for the Japanese yen, the actual settlement amount may vary due to conversion from the reference exchange rate.