where is the enemy's origin?
He is a fictional character appearing in American comic books.
Adam Warlock
 is a fictional character appearing in American comic books 
who does thanos kill in infinity war comics Half of the living beings in the universe. what is the story behind this? It is about Thanos has collected all six Infinity Gems and attached them to his gauntlet. With their combined power, he becomes "like a god" and sets out to win the affection of Mistress Death, the living embodiment of death in the Marvel Universe. When Thanos uses his powers to instantly kill half of the living beings in the universe, Adam Warlock leads Earth's remaining heroes against him.
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Adam Warlock [SEP] Introduction
Adam Warlock, originally known as Him or Adam, is a fictional character appearing in American comic books published by Marvel Comics. The character's earliest appearances were in "Fantastic Four" #66–67 (cover-dates Sept. 1967 and Oct. 1967) and "Thor" #163–166 (April–July 1969). He was created by Stan Lee and Jack Kirby, and significantly developed by Roy Thomas and Jim Starlin. Debuting in the Silver Age of comic books, the character has appeared in over four decades of Marvel publications, and starred in the titles "Marvel Premiere" and "Strange Tales" as well as five eponymous volumes and several related limited series. Adam Warlock has been associated with Marvel merchandise including animated television series, and video games.