Genshi Shoujo Urara

Yuu was known for his speed and regarded as a hero at school, but his life shifts dramatically after a long hospital stay. Classmates who once visited him begin to disappear, leaving him feeling isolated and hopeless. During a medical examination, he unexpectedly time travels to a primitive era, where he experiences intense action in an unfamiliar setting.

Isinasalin pa — orihinal na teksto sa English.