Welcome to the Next Hero movie of My Hero Academia on Nambu Island where the Four Villains Target a Boy to get his Quirk for cell activation primarily (Katsuma Shimano) while Mahoro Shimano tries to defend him The entire Team of Class 1-A is assigned to the island completely unaware of the danger their about to face fortunately they had a new ally with Quirk that isn't much use that's you now you need to assist class A With one of them helping you to put your quirk into full use with help from one of the students.
Nine is After Katsuma for his Quirk. Chimera Slice and mummy to wreak havoc across the island no matter who they get to step on Deku, Uraraka, Bakugo, Momo, IDa, Kirishima, Meneta, Sero, Toru, Koda, Koji, Shotou, Tsu, Jiro, Tukiyami, Aizawa aka Eraser Head. Assigned them to the island anything good or bad is on them.