Seems like a cross between a manga and QTEs. You are basically reading story sequences as normal, but when action is needed or a fight comes up you have to "scratch" the indicated patterns with the stylus. May not be as bad as it sounds! It could at least be a bit more exciting than actually reading a manga, though it will also be a lot more expensive!
http://www.spike.co.jp/hokutonoken/
http://watch.impress.co.jp/game%2Fdocs/ ... hokuto.htm
http://www.dengekionline.com/data/news/ ... c8ef8.html
Couple of scans here:
http://insomnia.ac/archive/games/ds/h/h ... hanomichi/
Comes out February 14.