GACKT Official Facebook update. Transcript below

If you just try to do it this way, it seems strange. 
But, after you do it with a few people it’s quite stimulating. 

Original Post @GACKT 

Lined up ab training

G: If your rear is on the floor, your tail bone will hurt, so make sure your tail bone is on the mat
G: With your legs down, sit up 10 times per set
G: With your legs elevated

G: Next, with your legs resting. With them on the ground… And from here, your knees

Transcript: GACKT ITALIA Team

Transcript © GACKT ITALIA