Complex sentence: She hopes to defeat Naraku and be reunited with Kohaku who was brought back from the dead by Naraku with a Shikon Shard, at the end of the manga after Naraku is killed she married Miroku and has 3 children with him.
Split into simpler sentences: She hopes to defeat Naraku and be reunited with Kohaku who was brought back from the dead by Naraku with a Shikon Shard. At the end of the manga, after Naraku is killed, she marries Miroku and has 3 children with him.