The gifted children are now dispersed, some in Japan and Rori and Ayane in Ireland with Rori's father who has links with the Irish fairy folk. There are flashbacks about Rori's origins as well as action in Ireland and in Japan. It's getting quite complicated so reading the three previous volumes is recommended. It's obvious that there is more to come and I look forward to it.
This series continues with a lot of action and adventure and is nicely written and illustrated. The series is well worth a look.