Mushroom Hero is a Manga/Manhwa/Manhua in (English/Raw) language, Manhua series, english chapters have been translated and you can read them here. You are reading Mushroom Hero chapters on VipToon, fastest updating comic site. The Summary is
A Small mushroom monster, try to make a comeback, try to become the strongest hero! What will he encounter? Mushroom will make use of his system to keep evolving!