Inexplicably selected, Yang Xi, who is undergoing trials in the infinite world, is struggling in danger while exploring the hidden secrets. Saeko Busujima: Take heart, you are our team leader! My pet, please don't embarrass me! Hiiragi Mahiru: Let's kill each other! Isayama Koizumi: Sitting in the frosty sky, Hirinmaru! Wait! Is there something wrong?! Well, it is said that this is Comprehensive novel.