I Just Confessed to the Ancient One, and Thanos Showed Up

Nan Luo, who arrived in the Marvel Universe, awakened a System that let him randomly copy one ability or item belonging to anyone he confessed his love to. So Nan Luo set his sights on the many superheroes of Marvel! Sorcerer Supreme - Gu Yi; Scarlet Witch - Wanda; Captain Marvel; Polaris; Phoenix... [Ding! You successfully confessed your love to Sorcerer Supreme - Gu Yi. Randomly selecting one of her abilities or items!] [Ding! Ability selection complete. You have obtained...] [Ding! You successfully confessed your love to Black Widow - Natasha. Randomly selecting one of her abilities or items!] [Ding! Congratulations, you have obtained...] As the sound faded, Natasha, who had been smiling just moments earlier, suddenly changed expression. At the same time, Nan Luo, standing not far away, stared at the object that had suddenly appeared in his hand, lost in thought...