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The "Terasaka Gang" is the name used to refer to the friendship group of Terasaka Ryoma, Hazama Kirara, Muramatsu Takuya, Yoshida Taisei and Horibe Itona from the popular animanga series Assassination Classroom. You may have otherwise seen them called "Terasaka Squad" or "Terasaka Group" which derives from their Japanese name "寺坂グループ" (Terasaka guru-pu).They have a delinquent theme and are marked by their individual and entwined character arcs that see them integrate more with the rest of Class 3-E after their initial antagonism towards them and Korosensei while maintaining their strong bond with each other. Their relationship develops from a "leader and followers" set up to an inseperable group of friends who strongly rely on, understand, and care about each other. Their relationship, overall, can be summarised by Terasaka's character profile from the databook where they are referred to as his "best friends" and "treasure", as this was written at a point in the story where their personal arcs had essentially concluded leaving us to see the results.