The Villainous Officer Hypnotized by a Magical Girl

After finishing the first playthrough of the galgame Hoshino Hara, he unexpectedly transmigrated into its world and became the nameless older brother of Hoshino Hikaru, one of the story's strongest magical girls.

Hoshino Hara panicked a little, because he knew that the first playthrough ended in ruin, with every magical girl turning evil and destroying the world.

After a series of attempts, Hoshino Hara failed to join the Magical Girl Alliance and chose to join the villainous organization "Dark Erosion" instead. Thanks to his outstanding performance, he became an executive whose status was second only to the leader.

Just as Hoshino Hara thought he could remain between good and evil and control the whole situation with his clever little maneuvers, things suddenly took an unexpected turn.

First, there was Hoshino Hikaru. On the very first day she became a magical girl, she used a gem that could alter memories to give him the command, "Big brother must love his little sister forever."

Then there were the other magical girls. Following a few scattered clues, they gradually began to doubt Hoshino Hara's identity and tried to pry open his mouth by some unspeakable means.

Worst of all, even his fellow executives in the organization had begun looking at him strangely, their gazes full of a peculiar possessiveness. They kept inviting him, without tiring of it, to visit the organization's newly built underground secret laboratory with them.

As time went on, Hoshino Hara realized that his efforts really might avert the disastrous ending. But the story was inevitably heading toward another, twisted extreme...