Kyoukai Senjou no Horizon - Volume 7C, Chapter 74: Reducer of Attacks

After dying in an oddly anticlimactic vending machine accident, Kazuki Ren is reincarnated in the demon realm—not as a hero, not as a villain, but as the only human male student enrolled at the mysterious Academy of Ruin, a school where all the professors are demon lords and all the students are powerful, beautiful she-demons.Ren is told he has one task: survive.But there’s a catch. The Academy’s darkest secret is about to awaken, and Ren holds a hidden power that could either destroy the demon world... or rule it.Now surrounded by seductive demons with hidden motives, eldritch tomes, forbidden dungeons, and twisted exams, Ren must master his ability—or be consumed.Magic, mystery, danger, and temptation await in this dark academia harem fantasy.

Davi was born into a prestigious family of powerful explorers, yet he did not inherit his father’s legendary class.Because of this, he was scorned throughout his childhood. Still, through relentless determination and the support of his best friend, he managed to save enough money to leave his hometown and enroll in the Explorer Academy.Then fate dealt him an unexpected hand, and he received the bizarre class [Harem King] and began his journey to become the greatest explorer of all time.What to expect of the story:- A lot of tension and life-or-death battles- The protagonist’s growth through hard work- And, of course, a harem.

GunGun, as a national treasure(panda), was stolen by thieves and skinned. Once he woke up, he had a healthy body and lots of bamboo leaves. But monsters with glowing eyes surrounded him, most importantly they were floating, have greenish blue faces, fangs, and have no little legs?!

(⊙o⊙) Oh, the two-legged monster is here again, huh, is this bowl of food for him? These tender leaves are delicious, they should be hidden in the deepest part of the den.

There was an extra panda cub in the Interstellar Admiral’s embrace which he brought everywhere he goes. The place where a gun was once placed turned into a place for holding a basket full of leaves.

One day, GunGun became a beautiful boy.

Pouting face GunGun: Big monster I’m hungry. Huh? Where’s my fur!

The admiral’s face flushed crimson red being overwhelmed by its cuteness: “!!!!!” My darling!

******Small Theater~******

GunGun who was holding a small bamboo shoot and shivering: It’s so scary, monsters with no heads or tails are floating!

The admiral who fell from the sky: GunGun, don’t be afraid.

GunGun who was holding a little apple and shivering: It’s so scary, a glowing green skull is smiling at me!

The admiral who fell from the sky: GunGun, don’t be afraid.

GunGun who was clinging to the Admiral’s thigh with wet eyes: Ah, the corpse moved! He said that I’m cute and wanted to touch me.

The admiral who became fierce: This absolutely won’t do!

- Description from Novelupdates

A girl who calls herself a demon appeared before a timid student named Fumio Kijima. The girl claims to be a campaign girl from the demon world and she gives him the ability to “summon a room” from nothing but thin air.

At first he doesn’t abuse his power and uses it as a convenient ability in his every day life. But one day he is bullied by his classmates under a false pretext and is made to suffer. In the past he would have wallowed in misery and cried himself to sleep, but now he had a power to call upon.

“I will make them regret it!”

Using his powers to summon his “room”, he begins his era of confinement and brainwashing to achieve his goals.