My Hero Academia Season 4

Sir Nighteye, Aizawa, and Izuku catch up to Mirio. Overhaul's subordinate Hari Kurono removes himself and Aizawa from play, revealing Eri to be the previous Hassaikai boss's granddaughter. Overhaul refuses to accept defeat and uses his Quirk to fuse with Nemoto, transforming into a four-armed monster. Nighteye orders Izuku to take Mirio and Eri to safety while he holds off Overhaul, but is gravely wounded, and his Foresight shows him Izuku being killed and Overhaul escaping with Eri. Despite this, Izuku refuses to give up on saving Eri. (Source: Wikipedia)