Tentang
Age: 17
Birthday: December 6
Height: 170cm
Weight: 56kg
Blood type: B
Likes: Sweet things, games
Dislikes: powdered medicine
Vocalist and the younger member of the idol group ŹOOĻ. He attends the same school as Iori and Tamaki. He likes sweet things and always eats special doughnuts made by a young girl, despite thinking they are not good. He was a straightforward child who worked hard toward his goal, but he was distorted by a certain incident. Haruka is said to harbor a deep hatred for Tenn and Kujou Takamasa. Desperate for revenge, he accepted Tsukumo Ryou's offer to join Tsukumo Productions and form the idol unit ŹOOĻ.
Before adopting Tenn, Kujou trained Haruka abroad alongside Aya. Just like Tenn, Kujou initially fostered Haruka's dream of becoming an idol who would surpass Zero. However, Kujou dismissed Haruka as a "failed product" and abandoned him. This fueled Haruka's hatred and resentment, leading him to desperately seek to destroy Tenn and Kujou.
While still training with Aya, Kujou stated that they were quite close. He also revealed that Haruka was Aya's boyfriend.