Reader is a Manga/Manhwa/Manhua in english language, Adventure 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

Bookworm – Soo-Hyuk. Reading fun number one, always looking for a new way to read books. Even joined new game so no one could disturb him from reading books. The moment Soo-Hyuk finished reading his first book and closed it, he received notification: Wisdom +1 level ….