I went from the strongest job, , to a beginner level job, , yet for some reason the Heroes rely on me

I went from the strongest job, <Dragon Knight>, to a beginner level job, <Carrier>, yet for some reason the Heroes rely on me 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 ManhwaZ fastest updating comic site. The Summary is <br><br> *The title explains everything*