Here's the Name Tag and Character List in one chapter! I'll update it as more Name Tags are found, etc. It took me super long doing this...

WARNING: SPOILERS FOR CHAPTERS BELOW (For new readers. :D)

Tsuji Academy

Class 2-1, [Makoto Kuroda] {M}

((Food poisoning, ate rotten flesh))

Tsuji Academy

Class 2-1, [Yukio Machi] {F}

((Stabbed and eaten by friend))

Tsuji Academy

Class 2-1, [Shiro Takara] {M}

((Offered own flesh to sustain friends))

Tsuji Academy

Class 2-1, [Kei Nomura] {M}

((Repeatedly stabbed by children spirits))

Kiharu Academy

Class 3-5, [Akane Wasaki] {F}

((Slowly beheaded))

Kiharu Academy

Class 3-5, [Akira Koga] {M}

((Suicide under the Darkening))

Kiharu Academy

Class 3-5, [Rieko Kuramoto] {F}

((Smashed by blunt object))

Kiharu Academy

Class 3-5, [Hotaka Kumagai] {M}

((Asphyxiation))

Nai Girls' High School

Class 2-2, [Amaterasu Kataoka] {F}

((Eyes gouged out))

Nai Girls' High School

Class 2-2, [Asuka Noguchi] {F}

((Blood loss from external wound))

Mitsuru Boys' Academy

Class 3-4, [Izanagi Oogami] {M}

((Suicide in despair after having killed a friend))

Ryoko Academy

Class 3-2, [Sayuri Yokota] {F}

((Blood loss after had been sliced with edge weapon))

Syo Private High School

Class 2-3, [Kuroko Katsuya] {M}

((Body cut in half))

Musashigawa Girls' Middle School

Class 1-2, [Hikari Kirigami] {F}

((Bled out from injuries))

Lexern Senior High School

Class 3-2, [Emi Kudou] {F}

((Offered own flesh to sustain friend))

Byakudan High School

Class 2-4, [Ryosuke Katayama] {F}

((Thrown down stairs))

Byakudan High School

Class 2-4, [Tomohiro Ohkawa] {M}

((Sliced by sharp object))

Byakudan High School

Class 2-4, [Kai Shimada] {M}

((Stabbed))

Byakudan High School

Class 2-4, [Masuto Fukuroi] {M}

((Struck with weapon and stabbed with another, bled out))

Byakudan High School

Class 2-4, [Kensuke Kurosaki]

((Stabbed and eviscerated}

Byakudan High School

Class 2-4, [Mitsuki Yamamoto]

((Back slashed open with edged weapon; bled out.))

Kisaragi Academy

Class 2-9, [Seiko Shinohara] {F}

((Hanged))

Kisaragi Academy

Class 2-9, [Mayu Suzumoto] {F}

((Thrown on wall at superhuman speed, splattered))

Kisaragi Academy

Class 2-9, [Sakurato Morishige]

((Became crazy and banged his head on a window, causing it to shatter and a

Meguru Academy

Class 3-7, [Miyaki Koboyashi] {F}

((Multiple stabs by sharp objects))

Meguru Academy

Class 3-7, [Reon Miyazaki] {F}

((Beheaded by piano wires))

Igarashi High School

Class 2-5, [Riru Murakami] {F}

((Blood loss after both legs amputated))

Igarashi High School

2-5 Class Homeroom Teacher, [Yukari Tsutsui] {F}

((Tore apart))

Mochizuki Academy

Class 3-9, [Tetsuya Shimabukuro] {M}

((Controlled as a puppet by Girl in red dress, cut off own tongue))

Mochizuki Academy

Class 3-9, [Akasuki Eguchi] {F}

((Organs extracted from her body for donation))

…

Character List

Mochizuki Academy

Class 2-9

EGUCHI, Akasuki | Deceased

ISHIBASHI, Hisaka |A rich heir of a big company his parents own

KUROSAWA, Mamoru |Proven to have good medical talents

SHIMABUKURO, Tetsuya |Deceased

SMITH, Shawn |Transferred from USA

WARAE-SAKURAI, Mikku |Seemingly has someone wanting to protect him to any cost

YOKOMAKI, Sumiko |Friendship is one of the most important things for her

Igarashi High School

Class 2-5

TSUTSUI, Yukari | Deceased, Homeroom Teacher of Class 2-5 - Limbs torn apart by children spirits

ENEMOTO, Machiko |A scaredy cat - Deceased, stabbed by 'Mikku'

FUSHIMI, Kozakura |The delinquent of the school

IKEDA, Hitoshi |The class clown - Deceased, his organs were found splattered on the walls while his body lied in the middle of a hallway

ITOH, Ritsu |The bully of the school, also a top model who knew Kai Shimada by buiseness, traumatized by the fact Machiko and Hitoshi left her alone after a while in being in HHES together, Machiko scared after seeing Riru's corpse, Hitoshi possessed by the Darknening after had trying to kill her

KWON, Dana |Has a crush on an unknown person

MIYAMOTO, Rei |A proud Otaku who has a weak spot for Kozakura Fushimi

MORAKI, Seji |An albino that stare without realizing it

MURAKAMI, Riru |Deceased, legs cut off, bled out.

Meguru Academy

Class 3-7

AOKI, Kano |Has a fascination for the occult and treats her bunny plushie, Miu, like a human

AOKI, Usaji |Has a hidden side and has the ultimate goal to save his sister, to any cost. Lived a traumatizing experience in the past

FURUKAWA, Tsubaki |Discovered Shiro Takara's secret while arising the wuestion 'Who is Izaya'. Deceasd, killed by unknown murderer.

HAYASHI, Takeshi |Schizophrenic and more prone to the Darkening than his friend

KOBOYASHI, Miyaki |Deceased, killed by Usaji and a Takeshi possessed by the Darkening

MIYAZAKI, Reon |Deceased, beheaded

TSUBAKI, Masuto |Rather obsessive-compulsive

Others

AOKI, Sora |The Aoki twins older brother who took care of them as they ran away from home. Now has 23. Went to Heavenly Host Elementary School (HHES) to save his siblings, bringing a group of friends. Deeply care of his siblings and has a weak spot for Urata.

OBI, Akemi |Brought to HHES by Sora, in his will to find his siblings. Sora's 'girlfriend'. Killed by Yoshikazu Yanagihori after she sprained her ankle, thinking it was broken. Urata mentioned that no one seemed to like her, including Sora.

OISHI, Hiro |Brought to HHES by Sora, in his will to find his siblings. Killed by Usaji after seeing the fate of his friend Misao.

KAWAI, Izaya |A strange, child-like (acting like a child) and childish Goth Lolita girl who refers herself as Iza and who is called IzaIza-chan by Shiro, with whom she seems to have a strange connection. Is 19 years old. Brought to HHES by Sora, in his will to find his siblings.

KAWAI, Madoka |Seemingly Izaya's sibling, also acts like a child. Seems to be linked to HHES, Yoshikazu kidnapping him. Refer to himself as Doka-tan and Izaya as Iza-tan. Brought to HHES by Sora, in his will to find his siblings.

KIMURA, Houtarou |Brought to HHES by Sora, in his will to find his siblings. A bit of a scaredy cat. Deceased after had being possessed by the Darkening and killed by Sora who wanted to protect himself and his friends when Houtarou tried to kill them.

KURATA, Jin |Brought to HHES by Sora, in his will to find his siblings. Killed by Yoshikazu Yanagihori.

KATAYAMA, Urata |Brought to HHES by Sora, in his will to find his siblings. A optimistic girl who jokes in every kind of circumstances. The mood maker and the one to cheer everyone up.

TAKARA, Shiro |A boy supposed to be dead and whom greatly resembles to Mikku. He mentioned to be technically 21. Lost his three siblings at a young age, researching them, even when being stuck in HHES, being a zombie-like person revived by Sachiko to serve her as a pickpocket to steal the Sachiko Ever After charm paper scrap.

TANAKA, Aoi |Cold and distant, with a strong liking for blue, what his name means. Brought to HHES by Sora, in his will to find his siblings.

TSUBAKI, Takano |Masuto's twin

TSUKASA, Enemoto |A cheerful boy often scolding Yuuki for being so blunt. Has a crush on her, even if he'll never admit it, being too stubborn. Brougth to HHES by Sora, in his will to find his siblings.

TSUMIKI, Yuuki |A somewhat cold, blunt girl, that reminds everyone of the evidences and also of their friends' death, to push them to continue to move forward. Is caring on the inside, even if it doesn't look like it. Is the love interest of Enemoto. Brought to HHES by Sora, in his will to find his siblings.

YAMAGUCHI, Misao |Brought to HHES by Sora, in his will to find his siblings. Accidentally stabbed by Sumiko, then fell down a hole.