Dieter's Brutal, Harsh, Emo Discovery

It is a few years after the events of the main story. Dieter is Tenma's adopted son. They live a peaceful co-father-son-existence, peacefully eating their pasta and lettuce.

Yet, Dieter is a rebellious little child. He loves his soccer ball, but he also has developed a keen taste for Monster Energy Drinks.
However, his adoptive father, Tenma, does not approve of this interest.

One day as Dieter is dribbling his soccer ball, for his father had asked him to purchase some groceries.
However, Dieter does not have enough money to purchase a Monster Energy drink, and he has exceeded his 2 cans a week limit.
And there, outside the store, he sees a strange goth man, squatting with his pet crow.
Maybe he will purchase Dieter a Monster Energy...

Follow the story of teenage Dieter making a very powerful journey of self-discovery, parental issues, relationships, the pain and confusion of growing up, and the strange goth man living in Dieter's attic...