"Johann Chu是什么人格？ Johann Chu是MBTI中的ISTJ人格类型，九型中的1w9 - sp/sx - 154，五大类型中的RCOEI，Socionics中LSI类型。"
I think he is ISTJ is evident in manhwa and novels
Johann Chu is one of the main characters in Dragon Raja, an NPC, as well as a recruitable 6-Star Ally.
