__Height:__ 179 cm 
__Hometown:__ Saitama 
__BIM Type:__ Blazing gas 

Mitsuo was a very large man. In the beginning he travelled along with Himiko, Masashi Miyamoto and Isamu Kondō.    ~!After Isamu Kondō was killed by Masashi Miyamoto, he along with Himiko ran away from Miyamoto taking away his supplies. He teaches Himiko how to use the radar to track people. He was killed by Himiko while attempting to sexually assault her.!~  Not much is known about his past, only that he had sex with a girl he liked once, and that afterwards everybody at his school hated him (implying that it may have been rape, a fact he seems to be unaware of). This could lead to him being sent to the island.

In the blink of the mind's eye, Ryouta Sakamoto suddenly finds himself transported from playing the hit Btoom! video game to being stranded on a mysterious island, equipped with a day's worth of provisions, a bag of bombs, a strange crystal embedded in his left hand and a huge gaping hole in his memory. But it doesn't take long to figure out what's going on, especially after the first person Ryouta meets tries to kill him. Someone is attempting to recreate the ultra-violent Btoom! game in real life, and the island has been filled with an army of other unwilling players, each armed with one of the multiple variants of explosive weapons called BIM. Fortunately, Ryouta's an ace Btoom! player, but this insane version of the game has no reset switch or second lives, and there's only one way off the island: kill seven other people before they can kill you! Can Ryouta repurpose his game based skills fast enough to survive? 
(Source: Sentai Filmworks)

**Height:** 174 cm

[Profile (Kenyu Office)](https://kenyu-office.com/mamiyayasuhiro/)

__Non-anime roles:__
- Pierro - Genshin Impact (VG)

Sakamoto Ryuuta is an unemployed 22-year-old who lives with his mother. In the real world, there may be nothing really special about him, but online, he's one of the world's top players of the combat game "BTOOOM"! 
One day, he awakes in what appears to be a tropical island, though he has no memory of how or why he has come to be there. While wandering around, Ryuuta sees someone and calls out for help. The stranger responds by throwing a bomb at him! Now Ryuuta realizes both that his life is in danger, and that he has somehow been trapped in a real-life version of his favorite game! Will Ryuuta be able to survive long enough to figure out how and why he ended up here? 
(Source: MangaHelpers)

Mitsuo Akechi