Ari (27)is martial art expert and was an assasin as side job. he clear many mission that deemed as imposible and earned him title perfect killer, but in his last mission he got betrayed by his girlfriend and died. in his last breath he feel regret why did i pick this job why did im not just playing a game and make friends while he was youth and now he remember that his friend smile that invited him to play game STG that been booming and now became the most popular job. well i cant do anything right he then close his eyes . Ari wake up he hear boy voice about 14old. He open his eyes what i got back to the past.