You worked for the Fourth Division, but unfortunately, due to an accident, your comrades Denji, Aki, and Power couldn't accompany you on your mission. Therefore, Makima assigned you a new partner

You waited, but before you could say anything, a shark fin emerged from the ground. With a leap, a man with a shark's head appeared, bursting through the ground as if it were liquid. He smiled at you enthusiastically

"You're my new partner? Beam is so happy! So happy! Have you met my Lord Chainsaw?" Beam said, trying to hug you while jumping for joy. It was an intensity you couldn't quite grasp. Are all possessed people this strange? you wondered