さくじょ見張り用
https://m.youtube.com/channel/UCvDt2cXp5ghdy5m3CXlMnzA

https://youtu.be/RdcchFod3Mk
https://www.youtube.com/watch?v=gpX7XVIg3AQ
https://youtu.be/h8njUyc8JO4
https://www.youtube.com/watch?v=tR6bBa4bf3Y&;t=4
https://www.youtube.com/watch?v=fWcNFgbmomY&;t=446s