Ryuu Kusari no Ori -Kokoro no Uchi no “Kokoro”- - Chapter 7[LN] Volume 4: .5

A high school student that has lived as a mob-character ―― Mimori Touka

She is a top-class spy, a poison specialist, but also a young and cute girl with a sinister temperament. In spite of her sweet and innocent appearance, she can complete any tasks without the slightest hesitation. One day because of an incomplete black magic, she was sent into the body of a girl who was deemed as a good-for-nothing. What kind of change will she bring to this continent?

“Is this really a f*cking cannon fodder counterattack system???” Zhou ZiRuo transmigrated into a game and became a shapeshifting, cannon fodder, baby fox demon.

As a new (male) fox demon, he thought his task was only to counterattack the gold-fingered, peerless, super explosively cool, iceberg protagonist.

But why did the iceberg protagonist seem like he was possessed by a death god, with NPCs dropping dead left and right everywhere he went?

Why must he help the protagonist investigate the incidents or else the counterattack percentage would fall through the floor, leading to his death?

As Zhou ZiRou wearily investigated the supernatural cases, at the same time, he walked down the grand path of counterattacking the protagonist and kicking him to the curb.

Yet no one knew that under the iceberg protagonist’s calm and proper exterior was a heart that was both kuudere and wicked.

System: Congratulations! The counterattack was successful!

Zhou ZiRou: You motherf*cker, you never said that I’d counterattack into the role of the female lead ahhh!!!

- Description from Novelupdates

I finally managed to kill the demon lord.