「——刃、银狼、萨姆……以上四人，死活不论；
不得伤害『命运的奴隶』，或使其失去自主思考能力。」
——星际和平公司所颁之通缉令
在某个寂静的时刻，「万界之癌」如投水之石在浩瀚星海中激起涟漪，在极短时间内，这些扭曲难明的物质已经浊流诸界，而与泥滓同行的却是日彩星辉的宝石——亦即星核。
星核所到之处，无不遗留沦亡与破丧。对各种深受其害的文明来说，星核便是毁灭的象征。即便如此，星海之中还是出现了浊水求珠之人，他们自称为「星核猎手」，为了夺取星核而穿梭往来于不同世界之中。
除却事迹之外，「星核猎手」的一切都不为外人所知：他们信奉的星神究竟为何，夺取星核又谓何求？……纷纷传言中只有一条在宇宙间达成了共识：即「星核猎手」成员甚少，但个个身手不凡。
Stellaron Hunters — ???
"...Blade, Silver Wolf, Sam... The four mentioned above, dead or alive;
Do not hurt the Destiny's Slave, and do not let them lose their ability of independent thinking."
— A wanted notice put out by the Interastral Peace Corporation
In a quiet moment in time, the Cancer of All Worlds began to cause ripples across the stars, like a rock tossed into a pool of water, and began to expand its influence. Before anyone noticed, this twisted and unknown matter had already corrupted a great number of worlds, and the fancy colorful gem known as the Stellaron was in its company.
Death and despair followed wherever the Stellaron went. For many civilizations who have experienced the disasters it brings, the Stellaron was a symbol of destruction. However, even knowing its destructive nature, the fearless few travel between worlds to obtain the Stellaron. They call themselves the Stellaron Hunters.
No one knows anything about the Stellaron Hunters aside from what they have done. Which Aeon do they worship? What do they want with the Stellaron? With the cosmos filled with rumors about them, only one thing is for certain: Though the Stellaron Hunters are few in numbers, each of them holds incredible capacities and powers.
