「研究理应是为升华生命，而生命绝不会用悲鸣来表达感激。」
——佚名合著，《学会规章第十七版》
「若智慧生命行于正确之路，为何宇宙文明会停滞不前？」一群学者如是询问千篇一律的星空。对此诘问，俱乐部的天才置若罔闻，学会的凡夫则茫无所知，而能够给出解答的，除却启蒙他们的「原始博士」外再无他人。
这群狂热的学者很快站在了文明的对立面，自愿成为「返祖实验」最坚实的拥趸。他们坚信「智识」早已步入歧路，「退行」才是唯一的救赎——正如断除愚昧的枯枝后，知识的新芽方能从废墟中参出。他们坚信求识理应百无禁忌，全然不顾这些残虐的行径已经逾越科学边界，一头扎入了「谬种」的领域，在漫长的实验里，研究者与被研究者的界线也逐渐模糊，
宇宙中流传着一种说法，「原始博士」性情古怪，从不与任何「人类」产生联系。可这些追随者对世界产生的滋扰，又丝毫不亚于偶像本人。直到游侠举枪击穿一座实验室的铁门，却被喷涌而出的香蕉海吞没——人们终于意识到，过去名为「源究院」的团体已经不复存在，取而代之的，是一片向着「原始」退行的恐怖丛林。
AtaviSearch Forest: Erudition
"Research is supposed to elevate life, but life will never express gratitude with cries of sorrow."
— Anonymous Co-Author, Guild Bylaws, 17th Edition
"If intelligent creatures are advancing on the right path, why do cosmic civilizations come to a standstill?" A group of scholars poses this question to the unchanging stars. In response to this question, the Society's geniuses turn a deaf ear, and the ordinary in the Guild are clueless. Apart from Dr. Primitive, the one who gives them enlightenment, no one can grace them with an answer.
These fervent scholars very quickly find themselves on the opposing side of civilization, voluntarily becoming the staunchest advocates for atavistic experiments. They insist that Erudition had long strayed from the straight and narrow and that regression is the only salvation — Only after severing the withered branches of ignorance can new saplings of knowledge rise from the ruins. They are convinced that any means are necessary in the pursuit of knowledge, recklessly disregarding the fact that these brutal methods have already overstepped the boundaries of science, wholeheartedly throwing themselves into heresies. In the long course of their experimentation, the line between the researcher and the researched also gradually blurs.
There is a tale being told in the universe: Dr. Primitive is an eccentric, never seeking to consort with humanity. But the disturbances wrought in the world by these followers of his were no less significant than their idol. It wasn't until the Rangers shot through a lab's metal door, only to be engulfed by a sea of bananas pouring out, that people finally realized that the organization known as the Source Research Institute had ceased to exist, replaced by a horrific forest that is regressing into the primeval.
