Tree of Aeons - Treeditions

Gawain is dead and was transmigrated, but there was a slight problem during the process.
After floating for more than a hundred thousand years on a different continent, he felt that he might need a body to become a complete transmigrator, but he did not expect that…

- Description from Novelupdates

In the middle of a deserted island, a small boy wakes up with two sets of memories: one from his few years of life and the other from a man who lived to adulthood and achieved great things. When he least expected it, a powerful master appeared on the island and took him in as a disciple, revealing a shocking fact: magic exists in that world, and, thanks to it, humanity managed to conquer the galaxy.

Synopsis: I have joined a harem warrior's party in search of magical ingredients. But why does the warrior keep talking to me? ______________________ Reiew: The protagonist, who goes by the name Louis, joins a hero's party to gather magical ingredients. The party, made up of heroes who admire the main hero, initially sees Louis as a competitor. However, Louis has no interest in becoming a heroine or pursuing a romantic relationship with the hero. Instead, Louis plans to support the heroes and ensure they stay together, but finds herself constantly misunderstood as a rival. Louis’s quirky and endearing traits lead to humorous interactions with the hero's party as she tries to prove she’s not interested in romance​.

In the vast Marvel universe, where superpower was still slowly growing in its infancy, several peerless superheroes tried to find their path in The Marvel Universe. A young adult named Ron from modern Earth unwittingly stumbles into such a world and begins his journey with an unknown power. This is a magnificent yet unknown true marvel world! This is the story of a normal young adult and his adventures!

- Description from Novelupdates