After Surviving the SSS-Rank Demon Territory with a Useless Skill, I Became the Strongest Alchemist in the World ~Creating a Comfortable Base and Enjoying Life with Friends in Another World~ is a Manga/Manhwa/Manhua in english language, manga 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

Sora was summoned to another world as a hero. While other heroes were bestowed with powerful combat skills, Sora’s skill was something ordinary: “Alchemy.” Ridiculed for having a useless skill, he was exiled to the “Demon Forest.” However, little did they know, his skill was actually an exceptional SSS-Rank skill! Utilizing his alchemy, an unconventional survival journey in another world begins!