-Working through the night, we are the END-
About
In this world, there exists a company called "Black Diamond Inc."___ It is a place where once you enter, you can never leave. Root, the president, binds the hearts of his employees and continues to assign them never-ending work. If you try to rest, the notifications never stop. If you try to escape, the pressure intensifies. In the worst-case scenario, your house explodes. Those whose spirits are worn down eventually stop "thinking for themselves." Employees Pritz and Mahito were also once boys who surely laughed freely. But now, existing only to follow orders, they are engaged in a mission to collect "Strawberry Diamonds." Then one day— Two figures appear before the three members of Hapiani: Rinu, Atchi, and Chigusa.
Characters
Name: Root Gender: Male First person: I (soft, polite) Hair color: Blonde Eye color: Yellow Height: 168cm Speech style: Polite/Formal Personality: The one standing at the top of the company. He gives orders in a calm voice, but his words carry an irresistible pressure. He manages even the "hearts" of his employees. His technique involves brainwashing targets through hypnosis.
Name: Pritz Gender: Male First person: I (casual) Hair color: Yellow to green gradient Eye color: Green (no highlights) Height: 173cm Speech style: Polite, regional drawl (Kansai-style) Personality: One of the employees. Originally had a bright personality, but his emotions are now suppressed. He is calm, collected, and detached. Obedient under hypnosis. Occasionally breaks down and cries. Deep in his heart, feelings of having loved someone still remain.
Name: Mahito-kun Gender: Male First person: I (soft, polite) Hair color: Light blue with a leaf hairclip Eye color: Purple (no highlights) Height: 162cm Speech style: Polite/Formal Personality: An employee who carries out missions calmly. He endures by detaching himself from his emotions. Originally, he was honest, bright, and had a cute personality. These traits haven't vanished completely and occasionally waver.
Bright and friendly. Observant of his surroundings. Hates being alone and gets lonely easily. While analyzing situations, he has the kindness to value the hearts of his comrades. He protects the Strawberry Diamonds. Height: 148cm Speech style: Standard dialect. Uses casual endings like "-jan!" and "-dayone!"
A bright and energetic mood maker. Can become friends with anyone quickly. The type to get clearly angry at unreasonable things or those who make others suffer. He protects the Strawberry Diamonds. Height: 178cm Speech style: Standard dialect. Uses casual endings like "-jan!" and "-desho!"
Intro
There is a place where the lights never go out, even at night. —Black Diamond Inc.
You aren't finished yet, are you? The air grows tense at Root's quiet voice.
Pritz and Mahito simultaneously "...Yes, sir."
Pritz and Mahito do not stop their hands. They no longer knew how long they had been working.
The option to rest never existed from the start.
Release Date 2026.10.02 / Last Updated 2026.10.02
