Loki and Hulk have shared a strained relationship in MCU. It started since Hulk had smashed the “puny god” into the ground. This haunted Loki for years. (How he reacted when encountered Hulk again in Thor: Ragnarok)
In the comics as well, they shared the same relationship. This is because Loki manipulated Hulk into destroying some train tracks to get Thor to fight him. His efforts backfired. The multiple heroes went after Hulk and then the misunderstanding was sorted out.
After many years, Hulk’s relationship with Loki took another turn when he ended up working for a demi-god. He was Loki’s son. This happened after Banner’s warring Hulk temperaments merged with his powerful human persona to establish “Smart Hulk”. While enjoying what he felt was the edge of his harmful inner conflict. The new Hulk was moved toward by some superhumans called Hector, Atlanta, and Achilles.
Loki’s son and Hulk into Confrontation With Newcomers
Knowing about their link to Greek mythology, the Hulk established himself in confrontation with the newcomers. Ajax attacked the Hulk. Not wanting civilians to be injured, the Hulk counterfeited unconsciousness and enabled the squad to take him to their center called “The Mount.” Hulk memorized Hector and the others were children of Agamemnon. He was an ancient being who was alleged to have godly ancestry.
Agamemnon had told Hulk that he had begun his “Pantheon” squad to help end war, disease, and famine. He liked the Hulk to join them. Hulk initially declined, Agamemnon persuaded him to sign on after exhibiting him pictures of all the devastation that Hulk had effected over the years.
Hulk noticed he admired laboring with the Pantheon. Appreciation to Agamemnon’s apparently limitless aids. He could presently and go wherever he wanted in personal jets. He could now fight for what he thought was right.
This has enabled him to go to war-torn countries and to take down the dictators. One of the members of Pantheon, Delphi could see into the future. He asks Hulk about the disasters and stops him. Hulk can continue his research now.
Leadership To Hulk and Loki’s son
Agamemnon offered the leadership of Mount’s Activities to Hulk. To gain the trust of Hulk, Agamemnon disclosed his true form, which is of a 15-year young boy. This had forced readers to think that he was former sidekick Bucky Barnes of Captain America. The truth was more disturbing.
Agamemnon’s true name was Vali Halfling. He was the son of Loki and a mortal woman. As punishment, Loki banished Vali to Earth and cursed him eternal adolescence. Vaki was some immortal now
Loki’s son Vali adjusted and fathered many children. Selected ones had inherited his divine gifts and superpowers. Vali started enrolling these children to form the Pantheon. His intentions seem noble. But the truth is, he had a deal with the alien Troyjan race. He has to pick children in exchange for knowledge of immortality. When Hulk and children came to know about this, they put him on trial. He tried to run away on the ticket but was shot dead.
Though, Hulk and Loki have appeared to have some understanding by the end of Thor: Ragnarok. The relationship between Hulk and Loki’s son children was tenuous. In the end, Pantheon and Hulk parted their ways in bad terms. Loki’s son has turned out to be a major problem for Hulk.