Connect is a Manga/Manhwa/Manhua in (English/Raw) language, Manhwa 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

That guy killed me, But I came back to life and decided to take revenge on him. I can see each and everything that this guy does because this man, he didn't just kill me but even took my eyes and transplanted them into himself. I don't know who you are, but we will meet again very soon.