Nimotsu Mochi no Nousuji Musou 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

The more he carries, the stronger he becomes! An unmatched fantasy by the weakest adventurer duo! Ryuk, a boy with a unique skill “Porter,” which allows him to carry a massive amount of items, was being exploited as a chore boy for the S-rank party “Black Lion of Foresight.” One day, the party managed to acquire a storage item more convenient than Ryuk’s skill, thus no longer needed, Ryuk is banished inside a dangerous dungeon. Despairing in this hopeless situation, suddenly he meets a shrine maiden girl, Mio — and then?