Description:

Rando Shin, who lives in a Japan devastated by giant monsters, one day gained the ability to leap through time and transform into a humanoid monster. He decided to use that power to save his childhood friend, Azusa Nagi, who died in his past. (Source: Sneaker Bunko, translated)

Alternative Titles:

刻をかける怪獣, Toki wo Kakeru Kaijuu