When Tezuka was twelve years old, he met Fuji Shusuke for the first time, that little boy who didn't look like a mortal. He stabbed Tezuka's father's body with a knife, making a dull sound.
Tezuka watched as his father struggled to push his tiny body several meters away and fell to the ground, his transparent face stained red with blood.
At that time, Fuji was smiling, too beautiful to be played with.