(Male lead, harem, power fantasy, no cuckoldry)
Magical girls usually represent innocence and kindness.
They are gentle, friendly, brave, compassionate girls, with pure hearts devoted to truth and justice, full of positive energy.
No one could dislike these beautiful and powerful perfect girls. Even Lin Yu, after transmigrating into this doujin world, is no exception.
But this world is not peaceful. Evil forces are stirring, trying to corrupt these champions of justice and turn them into agents of darkness.
Lin Yu certainly won't stand by and do nothing.
Magical girls should act like magical girls. Helping them uphold justice is his duty.
Several years later
Based on the information above, explain in detail why His Majesty the Demon King, so deeply loved and admired by magical girls, is Lin Yu, and why the magical girls' corruption accelerated the world's downfall. (50 points)
