This month it's the Dozuki-me (Japanese tenon saw)!
The main difference between a Japanese saw and a traditional western saw is the blade. On a western saw the teeth are formed for a pushing stroke cutting action, the Japanese saw is the reverse cutting on the pull stroke.
To remove the blade you tap the back of the blade against the bench until to becomes loose enough to pull out. To secure a new blade in place you tap the folded steel saw back/guide against the bench until the blade is firmly in place.
That is it for June, look out for next month's 'Tool of the Month' post soon!