Ok, it’s finally time…
Time.. to check the magazine for more pictures of Hiro.

Oh yeah! We’re in the magazine again this month. The title?
KING IS IN DANGER!
Appropriate.. Since it’s time… for regicide!
Once again, let’s call the race girl and set up our next race.
... Bring bring!....

:
Yes? It’s a zero-yon gym?

::
I’m Hiro, ranked second, and I want to enter another race!

:
The best contest in Japan is. What is a normal race? Do you know there is a different way to do it?
I’m sorry, what?
It gives me an answer, Yes or No
Err… I'm going to pick, No.

:
In Japan, the first one to take it, become number one in Japan.
Uh huh. You mean, person who comes first, is the first? Got it.

:
So between races, mechanics will be needed to maintain the machines.
Between the races? There’s more than one?

:
Hiro is a mechanic. Have you decided?
Hiro is most certainly not a mechanic. Though our friend is a godsend with toothpicks, squids and scarfs.
Once again it’s given us an Yes / No answer. I guess I'll say ‘Yes’?

:
Don’t lie.
I’m... not lying, I just wanted to race the King?

:
If so, decide on a mechanic. Please try again.
*click *
Ok. I think I get what’s going on. It’s saying we need a mechanic for this race… for some reason, even though we haven’t had one for any of the other, 149+ professional races to date. I also understand that this will be a 'best of three race' - though it didn’t really translate that.
I’m sure ol’ Gan San has us covered. Let’s visit him in Nerima Auto.

:
To Mr Gunn. Let’s check it out!

:
Oh Hiro, what’s it like today?

:
In fact, this time in Japan, I need a mechanic.

:
Gunn-san will do it, right?


:
I am Zero Yon. I hate it! Other requests?
But… you were just at the race!

:
Such a situation…


:
If you say no, write no!

:
If you’re getting in the way of my work, get out of my way!

He just up and left! What's gotten into Gan-San?

:
What the hell is that? Stingy!

:
Mr Gan is a stubborn man!


:
I’m not stubborn, so I call him Mr. Gan. That’s not to say…

:
Are you having sex?


:
Mr Gan’s grandfather is Iwamoto, so he took the ‘Iwa’ part and named him Mr. Gan.
… they didn’t just name him Moto?...
I don’t get Japanese.

:
When you think of Iwamoto, you think of Zeroyon King.
Wait, that’s right, the King’s name is Yoshimasa Iwamoto - the announcer said so, way back when... I guess Gan-San’s last name is also Iwamoto?

:
Isn’t this the familiar Jouji?

:
Maybe a relative?

:
It’s parent and child.

:
Father and son? King and Mr. Gunn?
Theory confirmed!
….Though, this still doesn’t explain why Bowie would be having sex.

:
Ah, things used to be good…

:
Oops! Go away!
Oh Gan-San is back…


:
What the heck, are you still here?

:
Is it true that King and Gunn are father and son?

:
..........
Whoah. What’s going on? The music has suddenly gone… all wistful and tragic sounding…

:
That guy is saying stupid things.

:
Oh, it’s true. He is my only son.
Wait, Bowie is your only son, or King is your own only son? I can’t keep up.

:
… He said he was going to a zero-yon and ran out of the house.

:
... Leaving our husbands and wives behind…

:…
His mother died that year…

:...
I was thinking about him, until the dog night. I was worried.

:
I don’t like that. I’ll never forgive him!!

:
Did that really happen?

:
Sorry, of all people, with King. I’m thinking of taking Mr Gunn to a race…

:
No, that’s fine. That changed my perspective.

:
Next race is mine. I’ll go as a mechanic. Your car.

:
Go as fast as you can and get him!

:
From No.1 in Japan I’ll drag you down!

:
So you too, drive as hard as you can!
So, let’s take point here.
Gan-san’s son, the King, left home as a young man, in pursuit of Zero4. His mother died whilst he was off racing, and his mechanic father never forgave him, because this is a huge slight, for some reason.
So he’s going to get back at his own son, by helping Hiro beat him and take his place as the fastest racer in Japan.
… Works for me. 
I guess the place being good for parents, doesn't mean it has a good parent.

:
Yeah, I’ll do it, snow. I’ll definitely become the king!

:
Yeah, but his car is fast. Make sure you tune it up.
Ok. We’d better call Race Girl again..

:
Okay. Challenge the king!
... Bring bring!....

:
Yes? It’s a zero-yon gym?

:
Umm, this is Hiro. The mechanics have been decided… Race against the King!
Hiro’s is now 22 years old. It’s been four years since we’ve started this journey. And soon… it’s finally coming to an end…