Rei Sakuma

Rei Sakuma 1

Rei Sakuma 2

Rei Sakuma Manga Profile

Rei Sakuma Anime Profile

"Be careful when traveling at night. You don't know what kind of creatures might come out ♪"
Unit UNDEAD logo cropped
Class 3-B
Club Light Music Club (President)
Age 18
Height 179cm
Weight 61kg
Handedness Right-handed
Blood Type B
Birthday November 2nd
Likes School garden
Dislikes Noisy things
Family Parents & little brother
Hobby Taking a walk in the garden
Specialty Jazz dance
Voice Actor Toshiki Masuda (増田俊樹)
First Debut Rebellion - 20 (Game)
Chapter 1 (Manga)
Voice Sample  
Rei Sakuma Voice Sample 2
Rei Sakuma Voice Sample 3
Rei Sakuma Signature

A self-proclaimed "Vampire" who becomes completely miserable when the sun shines on him, even in the early morning, Rei is one of the "Three Oddballs". While he appears sociable, he never shares his true intentions with anyone. He speaks and acts like an elder, and he also knows a lot about the school's history. Since he studied abroad for a year, he has to repeat a grade.

Even though Rei is the president of the Light Music Club, he makes no effort to put things together. He loves his brother, second year Ritsu Sakuma, but receives harsh treatment in return. He is the leader of the unit UNDEAD.


Rei is a tall young man with a good build. He has slightly long, wavy black hair that stops at his shoulders and curves inward, and red eyes. He wears the school uniform with the white shirt unbuttoned at the collar and a green tie. Over the shirt, he wears a dull brown sweater with dark gray buttons under his school blazer, which is left unbuttoned. He also wears black loafers and red stud earrings.

On stage he wears UNDEAD's uniform. It includes a fur-lined jacket with half sleeves. It has double buttons on the front, outlined in red. The sides of the arms of the jacket are grey with a white pattern. The lining on the jacket is white. He wears a dark gray v-necked shirt that's tucked in. He also wears a dark gray belt, with a golden buckle. On the side, there's a dark gray bandanna with a white pattern. It has a golden beaded chain. He wears black pants and high black boots that cross down over the top. He wears a silver cross necklace, and black gloves with holes on the back of the hand. The outfit also has a black peaked cap, decorated with a silver beaded chain across the top.


  • Rei's autograph consists of his full name rendered in the Roman alphabet.
  • Rei is the leader of UNDEAD.
  • Much to Koga's annoyance, Rei calls him 'Doggie', completely disregarding the fact that the former insists he's a wolf.
  • Rei considers all of UNDEAD his 'children'.
  • He shares the same birthday as Izumi Sena from 3-A.
  • Rei is the only one to not have a spoken line in the first verse of Melody in the Dark.
  • Like Ritsu, he can play the piano, as well as the violin.
  • He shares a voice actor with Kashuu Kiyomitsu, who coincidentally has the same color scheme as him (red and black).
  • Rei's first name's kanji (零) stands for zero.
  • Leo has told Ritsu in the Dark Night Halloween event that Rei has, in the past, fallen unconscious and it was fortunate that Leo had found him and woken him up before anything worse could happen.
  • It is hinted that for an unspecified period of time, Rei had left Ritsu, making the latter despise him, even up till now. In later events it's implied Ritsu resents him because Rei wasn't there for him during the Knights fallout (when Leo left the school). At the time, Rei was dealing with the Five Oddballs incident and travelling to the Middle East to recruit Adonis.
  • Rei states that his coffin also doubles as a living space, and by tricking it with excellent arranging skills, he's able to fit in items such as manga borrowed from one of the Aoi twins, gardening magazines, clothes and even a refrigerator full of dry-cured ham.
  • Koga has stated that back when he was a first year, the vampire had been much more energetic and could move around during the day. However, he had tired himself out during the 'war' and has remained in his weakened state ever since then.
  • It is revealed in the "2D☆STAR: UNDEAD Interview" that Rei had to repeat a year due to studying abroad.
  • It was stated in Magicians Assemble and then shown in Crossroad that Rei used to be the student council president until Eichi took over.
  • In Magicians Assemble, Rei spoke like how Koga does now. And after the "war", he started to sound like an old man. Koga used to say that he admires Rei a lot, maybe that is why Koga's speech sounds a lot like Rei's when he was a second-year.
  • In Repayment Festival, it was revealed that Rei, Keito & Koga were in the same unit called DEADMANZ (Other spellings used are Deadman's and Deadmans). They had a limited time unit skill throughout this event. Their story is revealed in Crossroad.


See Rei Sakuma/Relationships

Character Name Rei's Nickname Nickname for them
Anzu (Protagonist) · Rei-san · Tenkousei no Jou-chan

· Jou-chan

Hajime Shino mini
Hajime Shino · Hajime-kun
Hinata Aoi mini
Hinata Aoi · Sakuma-senpai · Aoi-kun

· Hinata-kun

Midori Takamine mini
Midori Takamine · Sakuma-senpai
Mitsuru Tenma mini
Mitsuru Tenma
Shinobu Sengoku mini
Shinobu Sengoku
Sora Harukawa mini
Sora Harukawa
Tetora Nagumo mini
Tetora Nagumo
Tomoya Mashiro mini
Tomoya Mashiro
Tori Himemiya mini
Tori Himemiya
Tsukasa Suou mini
Tsukasa Suou
Yuta Aoi mini
Yuta Aoi · Sakuma-senpai

· Buchou (Club President)

· Aoi-kun
Adonis Otogari mini
Adonis Otogari · Sakuma-senpai · Adonis-kun
Arashi Narukami mini
Arashi Narukami · Arashi-kun
Hokuto Hidaka mini
Hokuto Hidaka · Sakuma-senpai · Hokuto-kun

· Hidaka-kun

Koga Oogami mini
Koga Oogami · Vampire Bastard

· Sakuma-senpai

· Wanko (Puppy)

· Koga

Makoto Yuuki mini
Makoto Yuuki · Sakuma-senpai · Yuuki-kun
Mao Isara mini
Mao Isara · Sakuma-senpai · Isara-kun
Mika Kagehira mini
Mika Kagehira
Natsume Sakasaki mini
Natsume Sakasaki · Rei-niisan · Natsume (Magicians Assemble)

· Sakasaki-kun

Ritsu Sakuma mini
Ritsu Sakuma · Anija

· Uza-nii-chan
· Onii-chan (Halloween 2015)

· Ritsu
Souma Kanzaki mini
Souma Kanzaki
Subaru Akehoshi mini
Subaru Akehoshi · Sakuma-senpai · Akehoshi-kun
Yuzuru Fushimi mini
Yuzuru Fushimi
Chiaki Morisawa mini
Chiaki Morisawa · Sakuma · Chiaki-kun
Eichi Tenshouin mini
Eichi Tenshouin · Sakuma Rei of the "Three Oddballs"

· Sakuma-san
· Sakuma-senpai (Magicians Assemble)

· Tenshouin-kun
Izumi Sena mini
Izumi Sena
Kanata Shinkai mini
Kanata Shinkai · Rei · Shinkai-kun

· Kanata (Magicians Assemble)

Kaoru Hakaze mini
Kaoru Hakaze · Sakuma-san · Kaoru-kun
Keito Hasumi mini
Keito Hasumi · Sakuma-san

· Sakuma Rei
· Sakuma (after Chapter 3)

· Hasumi-kun
Kuro Kiryu mini
Kuro Kiryu · Sakuma · Kiryu-kun
Leo Tsukinaga mini
Leo Tsukinaga · Rei · Tsukinaga-kun
Nazuna Nito mini
Nazuna Nito · Rei-chin · Nito-kun
Rei Sakuma mini
Rei Sakuma · Wagahai (我輩)

· Ore (俺)

Shu Itsuki mini
Shu Itsuki · Rei · Shu (Magicians Assemble)
Tsumugi Aoba mini
Tsumugi Aoba
Wataru Hibiki mini
Wataru Hibiki · Rei · Hibiki-kun

· Wataru (Magicians Assemble)

Madara Mikejima mini
Madara Mikejima · Rei-san · Mikejima-kun
Akiomi Kunugi Mini
Akiomi Kunugi
Jin Sagami Mini
Jin Sagami · Sagami-kun
Reimei Academy
Hiyori Tomoe mini
Hiyori Tomoe
Jun Sazanami mini
Jun Sazanami
Shuuetsu Academy
Nagisa Ran mini
Nagisa Ran
Ibara Saegusa mini
Ibara Saegusa
Mademoiselle mini
Daikichi mini
Leon mini
Leon · Leon-kun
King mini
Ruka Tsukinaga Mini
Adonis' Sisters

Voice Actor Comment

"I felt that this is a character very worth portraying. He speaks like an old man; he has to repeat a grade; everyone treats him like a weirdo; and most of all, he's Dracula. I had a lot of fun acting out this character with so many quirky traits. Sakuma Rei... a great character, indeed."

Rei Sakuma
UNDEAD tabber

Gallery Outfits Voice List Cards Appears In

Story: Sub Management Events: Mini Intimate Greeting

Rei Sakuma (Card) (Academy Idol) Rei Sakuma (Anemia) Rei Sakuma Strolling Rei Sakuma (Words from a Senior) Rei Sakuma (Man-to-Man) Rei Sakuma (Vampire's Rest Day) Rei Sakuma (Older Brother's Love) Rei Sakuma (Amusement Park Enjoyment) Rei Sakuma (Charming Drums) Rei Sakuma (Nemesis Summer) Rei Sakuma (Best Friend's Helping Hand) Rei Sakuma (Powerful Person) Rei Sakuma (Fragile Companion) Rei Sakuma (Slumber Seat) Rei Sakuma (Sense of Distance) Rei Sakuma (String Telephone) Rei Sakuma (Live Supervision) Rei Sakuma (Water and the Vampire) Rei Sakuma (Little Brother and Flowers) Rei Sakuma (Demon King) Rei Sakuma (Encouraging Chocolate) Rei Sakuma (Night and Gondola) Rei Sakuma (Banquet Spirit) Rei Sakuma (Awakening Vampire) Rei Sakuma (Kind Butler) Rei Sakuma (Phantom Vampire) Rei Sakuma (Tone of Darkness) Rei Sakuma (Entering the Stage) Rei Sakuma (Vigilant Lifestyle) Rei Sakuma (Old Friend's Unique Performance) Rei Sakuma (Boutique Owner) Rei Sakuma (Afternoon Start-Up) Rei Sakuma (3rd Anniversary) Rei Sakuma (Extreme Vacation) Rei Sakuma (The Ruling Undead) Rei Sakuma (Eccentric Night) Rei Sakuma (Black Eve) Rei Sakuma (At Twilight) Rei Sakuma (Nightly Voyage) Rei Sakuma (Recollection of Mundane Days) Rei Sakuma (Hydrangea) Rei Sakuma (Watchful Demon) Rei Sakuma (Crossroad Vampire) Rei Sakuma (Easter of Blood Drinking) Rei Sakuma (Devil's Bargaining) Rei Sakuma (White Vampire) Rei Sakuma (Hawk's First Dance) Rei Sakuma
Unit Rei Sakuma Kaoru Hakaze Koga Oogami Adonis Otogari