MEMORIZE is a Manga/Manhwa/Manhua in (English/Raw) 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

A man who had lost everything.

An almighty power, the [Zero Code] held within his hand.

“Player Kim Su Hyun, do you truly wish to revert the time of Hall Plain?”

“I want to go back 10 years. To that period when I first came here.”

Based in the same universe as "Second Coming of Gluttony".