Darker than Black Wiki
Darker than Black Wiki
Misuzu Ōyama
S1E1 Misuzu profile
Gender Female
Race Human
Relatives Toshiro Ōyama (Husband)
Professional Status
Occupation Landlady
Behind The Scenes
First Seen Season 1, Episode 1
Last Seen Season 1, Episode 25

Misuzu Ōyama (大山 美鈴, Ōyama Misuzu) is the owner of the apartment building that Hei stays at in Tokyo.


Misuzu has grey hair tied up at the back of her head where it is held with a pin which has a red ball at one end and dark-colored eyes.


Misuzu frequently chases Mao away from the building. She also likes to compliment Hei for being such a good boy.

Part in the Story[]

The Black Contractor[]

S1E3 Hei, Misuzu Ōyama and Mao

Misuzu with Mao and Hei.

When Hei arrives at their apartment building, Misuzu mistakes him for the repair man and ushers him in to fix the television that Hei is eventually able to explain that he is there about renting an apartment and she shows him to his flat. She frequently chases Mao away from her building as he reports to or summons Hei.[1] She tries to keep the other residents in check with their drinking and partying and applauds Hei for being a diligent student and worker, trying her best to keep the others from dragging him down. When Kenji Sakurai kicks down the door to one of the apartments, she makes him and the other residents fix it before preparing a large dinner for them all. Misuzu comments that because of their multinational origins, she is fluent in seven languages. This prompts Toshiro to spit out the rice he is eating in surprise at her comment.[2]

S1E23 Misuzu Ōyama shocked, Kiko, Gai

Misuzu is shocked at Toshiro's reply.

When Gai Kurusawa and Kiko Kayanuma visit their building in search of answers to a questionaire about the old stars, Gai asks Toshiro Ōyama about them. Misuzu dismissively says that Toshiro is mute, but he shocks her by speaking at length about a time they watched the stars when their daughter was still in grade school.[3]

Gemini of the Meteor[]

Misuzu is present in Shion Pavlichenko's alternate world. While she is outside her building sweeping, Suou Pavlichenko rushes passed her and says hello to her.[4]


Season One Appearances
The Star of a Contract Fell... The New Star Twinkles... The Red Dream of a Calamity... The Gardenia Gives Off Fragrance... The Pure White Dress Is Stained... Within the Wall...
On a Silver Night... The Memory of Betrayal... I'll Sing a Love Song... Without Dreaming Shallow Dreams... The City of Regulations... God's in His Heaven...
Meteor Shower Is the Dream That a God of Death Has... Beneath Cherry Blossoms...
Season Two Appearances
The Black Cat Doesn't Have a Dream of the Star... The Fallen Meteor... Vanishing Into the Snow Field... The Ark Trembles on the Lake... Gunpowder Smoke Drifts Away, Life Drifts Away... The Smell is Sweet, the Heart is Bitter...
The Doll Sings to the Wind Flower... On Summer Days, the Sun Sways... A Sudden Meeting On A Certain Day... Your Smile in the Street of Lies... The Water Bottom Dries, the Moon is Full... The Ark of Stars


  • The name Misuzu means "beautiful" (美) (mi) and "bell" (鈴) (suzu).
  • Misuzu's surname Ōyama means "big, great" (大) (ō) and "mountain, hill" (山) (yama).


  1. The Black Contractor, Episode 1
  2. The Black Contractor, Episode 17
  3. The Black Contractor, Episode 23
  4. Gemini of the Meteor, Episode 12