- ― Whenever he's beating on a dead body
|Power||Proximity Replication and Black Sheep Bomb|
|Weapon||Wooden Sword, Shifting Lance, M92 Vertec|
|Epithet||The Psycho Lancer|
|Race||Android (Hibiki Unit)|
|Age||Unknown (13?) (biologically)
|Blood Type||Ice Nine|
|Birthplace||5th Hierarchical City of Britannia (originally)
Switzerland (raised in)
|Occupation||Celestial and Witch Hunter|
|Base of Operations||Illusion Moon|
Sister Hibiki Units
|Appearance (applies to Calamity Form only)|
|Hair Color||Abyss Black|
|Eye Color||Eerie Glowing Blue|
|Weight||48kg (105.8 lbs)|
Orphaned during the second Phantom War, Saeko grew up in an organization administered by the Dairenji Syndicate. She was selected for the Black Sheep after participating in a youth training program for the Foo Fighters run by the Dairenji Syndicate.
His potential strength may not be quite as high as the other members (and other Hibiki Units), but through backbreaking effort and practice he has learned to wield his power quite skillfully. In fact, in this regard, he is rated at least two levels higher than his peers and other Hibiki Units.
It was that assessment that earned her the spot of the leader of the Black Sheep. She is a bit of a perfectionist, though, and this often puts her in conflict with other Hibiki Units.
Saeko is often confused for a female by his friends due to his young age, his effeminate features and his irregular fashion choice. Saeko's hair is a silver-colored gust cut, and his eyes are sea green. He wears a hooded baggy jacket with fur lining on the hood, with a yellow ribbon strapped loosely onto his left sleeve. Saeko has the Black Sheeps logo attached onto his jacket's right sleeve with a pin. Under the jacket, Saeko wears what appears to be a loose, flowy tank top, along with a pair of olive-colored shorts. On his neck, he wears a brown collar. For footwear, Saeko wears white socks with sneakers.
Saeko is known to be a kind, caring, strong and very reliable person, to the point of being annoyingly overbearing. Saeko often considers the feelings of other members of the Black Sheeps and often ensures their well being. Saeko secretly has an extremely sadistic tendencies while fighting "phantoms" and later explains to Gaylord that she had been that way for a long time before the Dimensional War ensued. He reveals that she derives pleasure from causing pain and suffering to others. It can be assumed that Saeko's existential conflict manifests itself by cloaking his sadistic, malevolent, and violent nature with the facade of a well-mannered and cultured young man.
- Saeko is the captain of Bacon Academy's Kendo Club.
- According to Sophia, Saeko ranks as the cutest male student at Bacon Academy.
- Saeko has been known to drool when he sleeps.
- Saeko's interests involve cultural Japanese things such as Koi fish and cherry blossom trees.
- Saeko dislikes it when Shizuka Liladan addresses her with the honorific kohai, as the two should be in the same year.
- Saeko seems to be sexually aroused when killing something, or at the very least, when killing Phantoms.