# Mahoto Watanabe

Mahoto Watanabe (ワタナベマホト, Watanabe Mahoto, born December 8, 1992) is a former Japanese YouTuber and rapper. He was part of the hip hop group Kaiware Hummer, releasing music under the stage name Bema.
Watanabe first began posting videos on Nico Douga in 2007 and transitioned to YouTube in 2010, becoming one of the first YouTube personalities on YouTube Japan. He gained popularity with his radical video style, but he was also known for his caring personality for his junior YouTubers, who called him "Oyakata". He is famous for having trained up popular YouTubers such as Tokai On Air, Avntis, and Hekitora House.
In January 2021, Watanabe allegedly solicited nude photos from an underage fan, which subsequently caused his agency Uuum to drop him as an act and YouTube to permanently ban his channel. In March 2021, he announced he was retiring from YouTube.

## Career

On November 7, 2007, when Watanabe was in middle school, he posted on Niconico under the username Sashiman (サシマン). Watanabe began uploading to YouTube in 2010.
In 2013, after signing with Genesis One, Watanabe became a member of the hip hop group called Kaiware Hummer with his fellow member Imiga and began his career as a rapper. Kaiware Hummer released their debut album, Beginner, under Neo Kinder Records on July, 12 2014. In addition, Watanabe released his debut solo album, Shinryakuteki Sukima, on November 26, 2016. In 2015, Watanabe made his acting debut in the Squash Films' drama titled Dancing Office Worker.
In 2018, Watanabe left Genesis One and signed with Uuum as his network. By June 2019, he had over 2.7 million subscribers on his main channel. After getting arrested on suspicion of battery in the same month, his activities were cancelled for the remainder of the year, including a new label contract between with Avex and an appearance of Kaiware Hummer at A-Nation 2019, while he remained at Uuum to do clerical work. On February 7, 2020, Uuum announced that Watanabe would resume activities on February 14, 2020 on a new channel.
On January 22, 2021, Uuum announced that Watanabe had been dismissed from the agency after confirming he solicited nude photos from an underage girl. On January 28, 2021, YouTube suspended his channel for community violations. Following the events, on March 2, 2021, Watanabe issued an apology on Twitter and also announced he was retiring from YouTube.
Since his retirement from YouTube, Watanabe started editing videos for Gardman, a YouTube channel with 2 million subscribers, earning him a million yen a month.

## Personal life

On January 21, 2021, Watanabe announced that he was marrying actress and former Keyakizaka46 member Yui Imaizumi and that they were expecting a child. The child, a daughter was born in June 2021. Following Watanabe's 2021 arrest, Imaizumi announced in July 2021 that she would not be registering their marriage and that she would be raising the child herself with support from her family.

### Legal troubles

On June 2, 2019, Watanabe was arrested on suspicion of battery. He had reportedly beat a female acquaintance and stomped on her face during an argument while he was intoxicated. On June 19, 2019, he issued an apology and also claimed he reconciled with the victim. On July 18, 2019, UUUM later stated that Watanabe's activities would be suspended, including Kaiware Hummer's appearance at A-nation 2019. Instead, he would be doing clerical work within the agency until December 31, 2019, though there were no immediate plans of him returning in January 2020. During this period, he was also prohibited from drinking.
On January 21, 2021, the same day where Watanabe announced his marriage to Yui Imaizumi, Japanese YouTuber Korekore posted a live stream video where a 15-year-old girl alleged Watanabe had solicited nude photos from her and then blackmailed her with them, with screenshots of private messages from November 2020. On January 22, 2021, UUUM announced that Watanabe confirmed the reports and was dismissed from the agency. The victim later contacted the police, which resulted in Watanabe being arrested on suspicion of forced child prostitution and possession of child pornography on March 17, 2021 after investigation. He was released on April 2, 2021 and indicted by the Tokyo Metropolitan Police Department on April 22 of the same year. On June 14, 2021, he was fined ¥500,000.
On March 22, 2024, Watanabe was arrested on suspicion of allegedly assaulting his ex-wife, including pushing her to the ground, on March 21.

## Discography
### Studio albums

List of studio albums, with selected chart positions, sales figures and certifications :
| Year | Title | Details | Peak chart positions | Sales |
| Year | Title | Details | JPN | Sales |
| 2016 | Shinryakuteki Sukima (侵略的隙間) | Released: November 26, 2016 (2016-11-26) Label: Neo Kinder Records Format: CD | — | — |
| "—" denotes releases that did not chart or were not released in that region. |||||

### Extended plays

List of extended plays, with selected chart positions, sales figures and certifications :
| Year | Title | Details | Peak chart positions | Sales |
| Year | Title | Details | JPN | Sales |
| 2016 | Happy no Daidasshutsu Ōgontō to Ikari no Wana (ハッピィの大脱出 黄金刀と怒りの罠) (with Yukon) | Released: April 28, 2019 (2019-04-28) Label: Neo Kinder Records Format: digital download | — | — |
| "—" denotes releases that did not chart or were not released in that region. |||||

### Singles

As featured artist
| Year | Title | Other artists | Album |
| 2013 | Flower | Aimi Sekiguchi | Sakasama/Flower |
| 2016 | Anemone (アネモネ) | Ryoji Takarabe | Season 1 |
| 2016 | Stalking Vampire | Ryoji Takarabe | Season 1 |
| 2016 | Kokomo | Ryoji Takarabe | Season 2 |
| 2016 | Hella | Saguwa | Scramble |
| 2016 | Still Full Tune | U-kon | Scramble |
| 2016 | Kaeri no Kai (帰りの会) | Jin Kawaguchi | Scramble |
| 2016 | Nakamaya (仲間家) | Saguwa, Soma Transistor, Hekiho and Jin Kawaguchi | Scramble |
| 2018 | Higashitoumi | Toshimitsu | Scramble Vol.2 |
| 2018 | Show Case | Sho Takeyaki | Scramble Vol.2 |
| 2018 | Pump Me Up | Little (from Kick the Can Crew) and Oma | Scramble Vol.2 |

## Filmography
### Movies

| Year | Title | Role | Production | Network |
| 2018 | Stalking Vampire (隙間男) | Himself | Squash Films | YouTube Premium |

### Dramas

| Year | Title | Role | Production | Network |
| 2015 | Dancing Office Worker (サラリーマンは踊る) | Himself | Squash Films | YouTube |
| 2015 | Stalking Vampire 2 (隙間男2) | Anti Ryunosuke | Squash Films | YouTube |
| 2016 | Blue Episode-0 Kokomo Days (日々ココモ) | Summer Fairy | Squash Films | YouTube |
| 2017 | Satan (魔王) | Himself | Squash Films | YouTube |
| 2018 | Shooting Star (シューティングスター) | Yuichi | Squash Films | YouTube |

## Publications

| Year | Title | Publisher | ISBN |
| 2015 | Shu Shu Shu no Hon (しゅしゅしゅの本~ワタナベマホトDVD付き1stリスナーズBOOK~) | Kadokawa | ISBN 978-4-0473-0638-7 |
| 2016 | Nya Nya Nya no Hon (にゃにゃにゃの本~YouTuber・ワタナベマホトと猫たち~) | Kadokawa | ISBN 978-4-0473-4317-7 |
| 2017 | Kaiware Hummer Monogatari Part 1 (カイワレハンマー物語・上) (as co-author) | Kadokawa | ISBN 978-4-0473-4660-4 |
| 2017 | Kaiware Hummer Monogatari Part 2 (カイワレハンマー物語・下) (as co-author) | Kadokawa | ISBN 978-4-0473-4661-1 |