Amano Taira is your average junior high student who has a problem with his height. Join him and his friends as they journey to many places and experience many hardships during their teenage years. This is a heartfelt school drama with a little bit of everything.

In the year 2000, a Chinese nuclear experiment went wrong mid-transit, resulting in Japan falling into ruin. Those who survived were housed in Japanese based American military facilities to escape from the deadly radiation and learned to live following regimented lives of labor and learning.
To relieve the boredom, a recreational drug called "Zero" was created and sold illegally. Taking the drug induced a dream filled sleep where people saw their lives as they were in the year 2000. And in the cases of those who hadn't been born before 2000? The most they could surmise is that they saw who they were in their past lives.
But it seems something is brewing below the surface, and those past lives may just hold the answer.

From Aerandria Scans:

Venice, the latter half of the 16th century. Young Legare works as an apprentice to his father, an apothecary, but his real passion is the forbidden art of Alchemy. One day, a fortune teller predicts that he will meet four people with the power to change destiny and shortly after, his father is incarcerated on suspicion of alchemy. Legare, the real alchemist, is forced to produce gold for the person who arrested his father. Follow him through the mysteries of Venice, through his struggles, his encounters with powerful friends and enemies, and his search for the Philosopher's Stone.