Free2Play is a Manga/Manhwa/Manhua in english language, Manhwa series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

Being an adventurer used to be the most dangerous profession in Geovora, but that changed with a revolutionary invention–battle dolls. Kuhl spends most of his time fixing these dolls, but he’s never had the coin to pull for one himself. He’s too busy saving to help his sick sister. However, when he stumbles upon Anika, an unregistered battle doll with no memory, the two may be able to help each other. Together, they set off on a quest to cure Kuhl’s sister and unlock the secrets of Anika’s past!