Even the strongest swordsman with zero equipment slots can equip 9999 cursed equipment is a Manga/Manhwa/Manhua in (English/Raw) language, COMEDY
series, english chapters have been translated and you can read them here. You are reading chapters on www.mcreader.net fastest updating comic site. The Summary is
In the world where "gears" determine life. "Noroa the Zero," who has zero ability to hold the gear, is totally worthless human. However, in fact, he can hold 9,999 gears, but only "cursed gears."