I've never tried, but one thing I wonder...

[ha! ha! ha!]

if I move to 2nd island, there I receive kenji's mission right? the one who aska's brother. 

but then later, I receive donald's mission that kill kenji. 

at this point, I have a question. what will happen if I ignore K icon (kenji's mission) and continue R (Ray's mission) and finally D (donald's mission of killing kenji)

??

anyone ever tried this?

simply I can just skip K mission?

[Exsanguination]

Yea you can miss/ skip his missions and complete the game still by killing him before completing them but you will not be able to obtain 100% completion in your stats. 

Edited March 27, 2023 by Exsanguination
Clarified

[cant remember]

Would have been funny if R* overlooked this and after killing Kenji you could still get missions from him

[universetwisters]

11 hours ago, cant remember said:

Would have been funny if R* overlooked this and after killing Kenji you could still get missions from him

 

He just appears as a spooky transparent ghost giving you orders & his voice has an echo effect