At Hope's Peak Academy, a school full of extraordinarily talented individuals, Nagito Komaeda is an ordinary boy with no special traits or interesting skills to speak of—except for his incredible unluckiness. Just walking to school in the morning leads to a number of unfortunate accidents, which only escalate as the day goes on. Despite this, Komaeda leads a relatively normal life and is satisfied with his modest slice of happiness. But everything changes when a mysterious boy who declares himself the "Destroyer of the World" arrives to shatter this hopeless paradise. [Written by MAL Rewrite]

After an airplane crash during a school trip, Oribe Mutsumi and her classmates were stranded on a seemingly deserted island. Mutsumi found the other survivors, and used her wilderness knowledge to help them. She expects that they will be rescued in about three days, which doesn't seem so long to endure. However, she didn't account for the fact that the island is populated with gigantic killer insects. Her knowledge of butterflies, wasps, and more may be the only thing that will help any of her classmates survive to be rescued!

(Source: MangaHelpers)

Former baseball player turned delinquent Taishi Fura accidentally witnesses the man-eating "ghoul" known as Lantern injuring his old friend and murdering another. Before the situation gets any worse, Fura's classmate Kishou Arima arrives―as he is actually an undercover investigator for the Commission of Counter Ghoul (CCG)―and forces the ghoul to flee.

Seeking revenge for his friends, Fura joins forces with Arima to hunt down ghouls in the 13th Ward—ultimately aiming to bring down Lantern. 

Tokyo Ghoul: "Jack" unveils snippets of life in the past for the CCG's fearsome "Reaper," Arima, giving insight into how he spent his high school days.

[Written by MAL Rewrite]

Shuu Tsukiyama is a "ghoul": a creature who eats human flesh, and he likes to enjoy his meals to the fullest. One night, while relishing in the premeditated murder of his dinner, Shuu's much anticipated first bite is disturbed by a sudden flash of light. The flash turns out to be from the camera of high schooler Chie Hori, who presents Shuu with the perfect picture capturing his true nature; the extremely clear shot of a bloody corpse and an overly excited Shuu threatens to expose his ghoul identity, thus Shuu needs to sort out this situation quickly. After Shuu discovers that Chie attends the same high school as him and is even in the same class, the reason behind his feelings of obsession changes from self-preservation to morbid curiosity. As he grows closer to the absent-minded and extremely odd photographer, he challenges them both to learn more about each other's conflicting worlds; Shuu promises that Chie will come out of this experience with a photograph superior to the one she already has. [Written by MAL Rewrite]