Ultimate character customization "Junction system" Junction system is G. F. (Summoned Beast, Guardian Force) is a system that strengthens abilities by junctioning items (other than items such as items and weapons) to characters.
In addition, remember the junction abilities (attack power junction, defense power junction etc.), you can further enhance the character by junctioning magic (Thunder, Fire etc.) to its abilities. In other words, you can customize characters indefinitely by combining character × abilities x magic.