__Height:__ 165 cm  
__Occupation:__ Nurse 
__Hometown:__ Chiba 

Shiki Murasaki  is a former player from a previous round of the real-life Btooom! game. After having been betrayed by Masahito Date, she has been living on the island ever since.

While seemingly simple-minded and even kind in the past, Shiki admits (a medical professional having sworn to do no harm) to committing cruel acts in the past. Her experiences with Masahito Date and the Btooom! game have jaded her, leaving her to assume a cynical approach to life, especially toward men, whom she regards with extreme distrust. She, however, after her experiences with Himiko and Ryōta Sakamoto, has opened up to others, revealing an emotional yet compassionate side to her.

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)

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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)