Masamune works as a Host, and is responsible for introducing Hotaru to the world of "Survival Games". He, together with his childhood friend, Tooru, form an alliance called the "Toy ☆ Gun Gun Team". He is unaware of the fact that Hotaru is actually female. To repay the damages caused by Hotaru to the club at which he works at, he offers her the chance to become a member of his team. Because of his past, he has abandonment issues, which later cause him to kick Hotaru out of the team, fearing she will leave him like his former friends/teammates and mother did. However, after Hotaru helps him face his past through a one-on-one challenge, he lets her rejoin. After Hotaru rejoins the team he develops feelings for her, but struggles with them as he does not know that Hotaru is female. There was a moment in his past where, after being abandoned by his mother, he grew suicidal. Nagamasa introduced him to survival games to convince him to live on.

When Hotaru Tachibana storms into a host club to avenge the honor of a wronged female student, the last thing Hotaru expects is to duel the club’s most popular host with airsoft guns instead of fists. When Masamune Matsuoka’s experience wins out over Tachibana’s brawn, he realizes that he can use his victory (and the large bill for damaging the club) to make Tachibana join his struggling Survival Gaming team. However, what ladies’ man Masamune totally misses is that his unwilling new guy… isn’t a guy at all! Under the boy’s clothing and strong need to defend justice, Tachibana is all-girl, but, for a number of complicated reasons, she absolutely CAN’T expose that fact to Masamune or his teammate, the erotic manga artist Tooru Yukimura. 
 
(Source: Sentai Filmworks)

__Agency:__ Arts Vision

**[Profile](https://www.artsvision.co.jp/talent/526/) | [Wiki (en)](https://en.wikipedia.org/wiki/Tomoaki_Maeno) | [Wiki (jp)](https://ja.wikipedia.org/wiki/%E5%89%8D%E9%87%8E%E6%99%BA%E6%98%AD) | [Twitter](https://twitter.com/Tomoaki___Maeno)**

Married fellow voice actor [Mikako Komatsu](https://anilist.co/staff/105071/Mikako-Komatsu) on May 12, 2020.

**Non anime roles:**
- [Zhongli](https://anilist.co/character/209686/) - Genshin Impact (VG)
- Luke Sullivan - Street Fighter (VG)
- Lif - Fire Emblem Heroes (VG)
- Ash Carbide - The Legend of Heroes Series (VG)

__Hometown:__ Frankfurt am Main, Germany

[Official Website](https://www.tobiasdiakow.de/) | [Synchronkartei](https://www.synchronkartei.de/sprecher/3377/2) | [Instagram](https://www.instagram.com/tobiasdiakow/)

Matsuoka and Yukki are close childhood friends who wished to become professional soccer players. Years passed&hellip; but instead of playing soccer, they&rsquo;re into something else instead: SURVIVAL GAMES. 
(Source: The Zero Alliance)

Hotaru Tachibana is a girl (though all too frequently mistaken for a boy!) with a deep sense of justice. When a classmate informs Hotaru that she was bilked out of her cash by a shady host at a host club, Hotaru immediately rushes to confront the villain only to discover that the con man in question is her new neighbor! Worse, he proposes to settle their feud with firearms! Okay, it turns out that they're just toys, but when Hotaru is soundly defeated, she finds herself sucked into the world of survival games. Is this new world one she can actually escape??
 
(Source: Yen Press)