"Battle Through the Heavens" was a web novel with a fantasy theme. It told the story of a young man named Xiao Yan who constantly pursued strength and engaged in intense battles with other factions as he grew up. "Douluo Continent" was another web novel with a fantasy theme. It told the story of a youth named Tang San who constantly grew in the Spirit Master realm and eventually became a legendary figure in the Spirit Master world. These two books were very famous, and the plot of the male lead was also a major feature of them. If you want to watch anime with such a plot, I recommend you to watch the two animes, Battle Through the Heavens and Douluo Continent. They all have wonderful plots of the male protagonist acting tough. I believe you will like them.