Aiming to Be the Strongest While Remaining at the Absolute Lowest Level With My Worthless Run Away Skill is a Manga/Manhwa/Manhua in english language, Action 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

Dungeons that suddenly appeared on Earth have become a part of everyday life. A reclusive young man, Yuuto Kurashiki, steps into a dungeon, hoping to overturn his stagnant life. However, the unique skill bestowed upon him is, ironically, the ability to “run away.” It’s a troublesome skill to wield, with a downside of reducing his overall abilities – a disastrous draw in the skill lottery. Yet, unbeknownst to him, this skill harbors an outrageous potential!