Ran this through google translate for those too lazy to
"Excuse me in Japanese
I need the flag first
Go to the front (south) of Don's house
It seems that you have to feed the NPCs in the upper left corner where there is a group of homeless people, listen to the story of Fight Club and set a flag.
In addition, I replied in English before
I'm Japanese ... lol"
Obvious errors due to google translate but im sure you can work it out. Unfortunately patch 23 broke it but it should be fixed in the next patch. Thanks to SAMUS for this, im just the dumbass who translated it lol