Arcane Ascension is a Manga/Manhwa/Manhua in (English/Raw) language, Comic series, english chapters have been translated and you can read them here. You are reading chapters on ManhwaZ fastest updating comic site. The Summary is

Five years ago, Corin Cadence’s brother entered the Serpent Spire — a colossal tower with ever-shifting rooms, traps, and monsters. Those who survive the spire’s trials return home with an attunement: a mark granting the bearer magical powers. According to legend, those few who reach the top of the tower will be granted a boon by the spire’s goddess. He never returned. Now, it’s Corin’s turn. He’s headed to the top floor, on a mission to meet the goddess.