Hibino Ayumi: 27 years old, single, a completely average office lady. But in her free time, she turns into a SOLO CLIMBER GIRL. Armed with plenty of delicious ingredients, she eats her way through the mountain trails, one by one.

Year 185, Commode emperor, cruel and thirst for blood, led Rome to its ruin. Instead of governing he prefers fighting in the arena. For, Marcia, his concubine, Rome has lost what has made its pride : Virtus
Desperate, she ask a witch for help. With magic, she casts a group of prisonners from the modern japanese era.