Regressor’s Survival Game: My Path to Power through Yandere Harem

John, a selfish protagonist, finds himself trapped in a deadly game where he must fight for his survival. In this game, he meets Adriel, a boy with a harem of Yandere girls. Desperate to survive, John begins to do favors for Adriel in order to get closer to him. However, he must be careful not to reveal his parasitic nature to the Yanderes who would stop at nothing to eliminate him and have Adriel all to themselves. Can John navigate the dangerous waters of the Yandere harem and come out alive, or will he fall victim to their twisted love? Find out in this thrilling web novel.