Primitive Boyfriend manga volume 2 features story and art by Yoshineko Kitafuku.

Unable to forget Garhi, the soulmate she met 2.5 million years ago, Mito returns to the past, thanks to the power of the goddess Spica! This time, she encounters a whole group of primitive humans—but they’re a far cry from Garhi. So Mito, along with a curious new companion, sets out through the untamed jungle to find the man of her dreams