sentences:  The gang is led by Mukuro Rokudo and was formed after Mukuro escaped from the prison on the eve of his execution along with several prisoners.The gang then moved to Japan to look for the successor of Vongola and took over Kokuyo Junior High within three days.The members of Kokuyo Gang are as follows; Mukuro Rokudo, Ken Joshima, Chikusa Kakimoto, Lancia, M.M, Birds, and Bloody Twins.