create implication drag-on_dragoon_1 -> drag-on_dragoon
create alias drakengard_1 -> drag-on_dragoon_1
create alias angelus -> angel_(drag-on_dragoon)
create alias decadus -> decad
1) First entry -> series name
2) EN -> JP
3) EN -> JP (or angelus_(drakengard)?)
4) EN -> JP (or decad_(drag-on_dragoon)?)