The ticket hero academy is one of the renowned academies where students have their own core from the figures of the past. There is something called core opening, perfect core opening and core concentration, but not everyone can perform a perfect core opening because it requires training and it's not easy. There are some students here who have a core, but there are also some who do not have a core. Typically, It is common that when performing core concentration and core opening, the form of the great spirit figure behind the user will be briefly visible for a few seconds before disappearing. the class almost start