Run Off, Dash!

(from ebookjapan):
His real name, whose nickname is "Dash-kun," is Hayao. He has no mother and lives with his father, a case reporter for Sunday News. He wanted to become a case reporter himself, and when he visited his father at the Metropolitan Police Department's press club, he found a special story and a major pattern. At that time, he was given the nickname "Dash" and became one of the case reporters he had longed to be. Dash-kun is very active, chasing various incidents that happen somewhere every day. There are special stories, but sometimes he also makes mistakes ......!