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Hiroki Moriuchi

Hiroki Moriuchi (森内寛樹, Moriuchi Hiroki) (born January 25, 1994, in Tokyo), better known professionally as Hiro, is a Japanese singer and the lead vocalist of the Japanese rock band My First Story.

Hiroki Moriuchi
森内寛樹
Hiro in September 2018
(1994-01-25) January 25, 1994Tokyo, Japan
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Maika Yamamoto (m. 2024)
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Takahiro Moriuchi (brother)
Musical career
Hiro
Rockpost hardcore
Vocals
2002–present
Intact RecordsUniversal Music JapanJohnny & Associates (2002–2005)
My First Story
Johnny's Entertainment (2002–2005)
My First Story official website


森ちゃんねる
2022–present
Vlog
199 thousand
24 million
Last updated: October 22, 2024

Hiroki Moriuchi (森内寛樹, Moriuchi Hiroki) (born January 25, 1994, in Tokyo), better known professionally as Hiro, is a Japanese singer and the lead vocalist of the Japanese rock band My First Story.

Hiro was born on January 25, 1994, the youngest son of Japanese singers Masako Mori and Shinichi Mori. He has two elder brothers, the eldest of whom is Takahiro Moriuchi, the lead singer of the band One Ok Rock and Tomohiro Moriuchi who works on TV Tokyo. In April 2005, his parents divorced when he was 11. Following the divorce, he and his older brother, Tomohiro, resided with their father; their mother took custody of their oldest brother, Takahiro.

Hiro announced his marriage to actress and model Maika Yamamoto on October 13, 2024, through a post in his official social media account. On May 5, 2026, his wife announced that she was pregnant with their first child.

Hiro signed with Johnny's Entertainment on December 1, 2002, when he was 8 years old. He was the youngest Johnny's Jr. and remained active until 2005.

He is currently active as the lead vocalist of the Japanese rock band, My First Story, which was formed in Shibuya in 2011. He released his solo debut album Sing;est on January 20, 2021, through Universal Music Japan. It contains ten covers of songs originally performed by exclusively female vocalists.

Title	Album details	Peak chart positions	Sales
Released: January 20, 2021
Label: Universal Music Japan
Formats: CD, digital download	7	5	JPN: 21,711

Title	Year	Peak chart position	Album
2013	*	25	Rock On
2014	–	Circles
2018	10	Non-album single
2022	–	–	Bullets into the Pipe
2023	–	–	Non-album singles
2024	–	–
–	–

Title	Year	Ref.
2013
2014
2018

Title	Year	Artist(s)	Ref.
2022	Chanmina

Award ceremony	Year	Category	Nominee(s)/work(s)	Result	Ref.
2023	Best Lyricist Award	"I'm a Mess"	Won

Official MY FIRST STORY website (in Japanese)
Official MY FIRST STORY Facebook
Official MY FIRST STORY Member's Club STORYTELLER Archived 2016-05-03 at the Wayback Machine
Personal Twitter account
Personal Instagram account

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