Hal is a new investigator and he works with Kai Etō as partners. Known as the "brilliant new investigator" to most of the Drug Enforcement Division of the Kantō region, he is almost always focused on his work. He also often uses his charm and good looks to his advantage to gather information, whether from men or women. Despite being rather stoic and seemingly uncaring, he is very protective of Kai.

Kai Eto may look like a squeaky clean kid, but the Greater Kanto Narcotics Control Division's new investigator hides a violent alter ego and a dangerous past. With his stoic partner Hal Kurabayashi, Kai is assigned to track down and stop the distribution of Dragon Speed, a dangerous new drug. But Ryugen, the syndicate trafficking the drug, is almost impossible to infiltrate. Add street violence and a jurisdiction war with the Meguro Police, and poor Kai is in for some very long days at the office.
 
(Source: Viz Media)
 
Included one-shots: 
Volume 2: Bonus Chapter 
Volume 6: Early Days; Bonus Chapter 
Volume 11: Bonus Chapter

Two newbies at the Narcotic Control Department in Japan, Haru and Kai, struggle against: drug dealers, gangs, murderers, psychopaths, mysterious organizations, and mad people in general. The gentle and caring one of the group, Kai, who has problems of his own, has the tendency of turning into a lethal killing machine in certain scenarios. The way he acts changes like that of a "switch". As the two do their job, answers of what is behind Kai's strange behavior and who exactly he is, is revealed.
 
(Source: Anime News Network)

__Height:__ 177 cm (5'9.75")

On October 26, 2022, it was reported that Sakurai had been engaging in an extramarital affair with a writer of his *P.S. Genki Desu. Takahiro* radio program. A month prior, it was publicly disclosed that he had been married to a former voice actress for nearly 20 years, although the writer had allegedly not been aware of his marriage as they had been in a relationship for 10 years and intending to marry. His previously announced roles as [Haruaki Karuma](https://anilist.co/character/290233) in [AYAKA](https://anilist.co/anime/155982/AYAKA/) and [Kusuriuri](https://anilist.co/character/2865) in [Mononoke (Movie)](https://anilist.co/anime/151117/Mononoke-Movie/) had been recast as a result.

On March 31, 2023, it was jointly announced with his talent agency "Intention" that they are ending their contract, as Sakurai requested to leave as a way of taking sole responsibility of his actions and for self-reflection.

Non-Anime Roles:
-Passenger in "Arknights" (VG/Mobile) (Japanese)
-Su in "Honkai Impact 3rd" (VG) (Japanese)
-Cloud Strife in "FINAL FANTASY 7 REMAKE" (Japanese)
Crow Armbrust - The Legend of Heroes Series (VG)

Haru Kurabayashi