Nightshade

Uchihama Academy has seen an increase in enrollment in recent years and as a result, a new school building will be constructed. The story takes place during the final school festival in the old school. All the club leaders decide to give it their all to make this the best school festival. Sou is a member of the notorious astronomy club, which basically solves the various issues in the student council's place.

On one day, he stays in the school late at evening because he got slightly injured by the judo club and is healing his wounds in the infirmary. Suddenly, the building shakes. Shocked, he runs up the stairs to where the shaking seems to have centered, and there he encounters a mysterious naked girl, who at first appears to know him. On the next day this girl, Yui, seeks out the astronomy club, expressing her desire to join.

When campus nobody Seiji is attacked by unhinged space demons, it’s his classroom crush Yuuri who shows up to save the day! Her magical-girl powers easily vanquish the enemy, but a surprise ambush forces her to dive in harm’s way to shield him—leaving both fatally wounded. Luckily, Miss Fujiko arrives on the scene with an enchanted thread to bind both their life forces, saving them from certain death.

Over the next three months as Seiji and Yuuri slowly recover, the pair are on doctor’s orders to stay within one meter of each other or risk snapping their “red string of fate.” This means shacking up together and pretending to be a couple to avoid their classmates’ suspicions, but despite the clueless Yuuri claiming to be a “one-woman fortress with zero openings,” her natural powers of seduction quickly result in awkward situations that test poor Seiji’s sanity and self-control...

With his dream girl only centimeters away at every waking moment, will Seiji finally summon the courage to shoot his shot?

Live, die, live again.

A few people awoke in an unknown place.
All of them, strangers to each other, are supposed to be dead.

Amid their confusion, a mysterious entity offers to extend their life with a single, non-negotiable condition: they must eradicate various specters in this world. Only the resurrected, such as themselves, could perceive and eliminate these otherwise imperceptible apparitions.

Their revival, however, has its side effects; an abnormally strong libido, the persistent dread of an unpredictable call to battle, and the constant terror of their borrowed time running out.

Still followed by the clutches of death, their cruel daily existence was about to begin...

Kyoichi Akikawa lost his family in a devastating plane crash when he was just a child.

"Will it really come someday?"
"Will the day ever come when I can truly move on from this pain?"

Kyoichi's stepsister Shizuku Akikawa has supported him all this time, while Yukitsuki Asaka bears a striking resemblance to Kyoichi's beloved older sister from before the tragedy.

As the paths of these three fated individuals converge, a mechanical god appears...

This is a story that heads towards the future.

Average joe Seiji encounters another magical-girl wonderkid—this time in the form of the mysterious Maja Krienke at his neighborhood park! Intrigued by her aloof charm and possible hidden motive, he tries to say something, when a Majin appears out of nowhere to reveal Maja’s true identity—a ruthless warrioress in cahoots with evil in exchange for the darker arts...

Stunned, Seiji agrees to serve as Maja’s familiar—or “satellite”—to aid them in taking down another, rival Majin’s demon hordes. He also stands to gain an impressive array of powers, but as a trade-off, he is now tightly bound to Maja by a magical tether, connecting him to her around the clock! As fate would have it, this rope is essential for Seiji to receive a steady supply of magical force—or risk his new satellite body collapsing in the mortal realm.

Forced into cohabitation with the lovely Maja effective immediately, he soon learns of her “unique” blindspots—for better or worse, her guard stays perpetually down around our loyal but increasingly frustrated hero, resulting in plenty of questionable close calls and near-accidents... Will an unlikely summer shack-up stir up something else between them, or will Seiji forever remain her indentured servant?