You typically can't kill the male lead in a manhwa. The story is built around them, and their presence drives the plot forward. Any attempt to do so would likely violate the established storyline and could lead to an unsatisfying or chaotic reading experience.
" The Seraphim of the End " was an anime with the theme of battle and love. The characters were deeply portrayed and the plot was compact. If you're looking for a similar anime, I recommend a few works:
" Sword Art Online ": This is an anime with a virtual reality theme. It tells the story of the protagonist's adventures and battles in the virtual world.
[2]" Attack of the Giant ": This is an anime with the theme of the battle between humans and giants. The characters are vivid and the plot is full of ups and downs.
[3]" The Blade of Ghost Destruction ": This is an anime with the theme of battle and revenge. The characters are vivid and the story is compact.
The above three animes were similar to The Seraph of the End in that they were both attractive with their characters and plots, but also had a profound theme.