Tsukasa Eijirou is a child who from the time he was born until he was 12 years old was always in the research building because his blood has the ability to treat various diseases. Because of that, there are some parties who always use Tsukasa as experimental material by taking his blood and using it as ingredients for making medicines which they sell to various countries. During the experiment, Tsukasa always felt excruciating pain and always cried every time he started having his blood drawn by people in suits in the name of the experiment. This made him always want to get away from the research building and feel freedom and see the world he lives in as read in the books that are always given to him to overcome boredom. But one day, Tsukasa suddenly woke up in a condition, this condition made him return to a toddler but he woke up in a room where a newborn baby was placed and rested. How's the story going? Follow this story.
28 parts