This walkthrough starts after the Amy Walktrhough (posted here: https://f95zone.to/threads/chloe-18-fake-family-v0-2-gds.56142/post-4270511), 
most of this could be combined with the first one...
- "Go out with Amy" on the Weekend day by clicking on the car in the garage
- "Go to the park"
- "Talk to Amy" -> "Ask About Kaoru" -> "Ask about Kaoru's Past"
- "Leave the park"
- "Ask about her green eyes" -> "So Kaoru you were an idol" (Likes you +5) -> "Stop to refuel"
- "Ask about her green eyes" (Likes you +5) -> "So Kaoru you were an idol" -> "Tell her it's gonna be a few minutes" (Trusts you +5)
- Back to the fair -> "Talk to Amy" -> "Ask About Kaoru" -> "When did you leave Japan?"
- "Leave the park"
- "Ask about her career doing adult stuff" -> "Stop to refuel"
- "Ask about her career doing adult stuff" -> "Say you can help her with the porn magazines"
- "Say you can help her with the porn magazines" -> "Take her back home"
- On weekend day go to the garage and click on car -> "go out for a Ride" -> drive to the gun -> "Steal porn from Hobo-Santa"
- "Ask about candy" -> "Grab the stuff and run"
- Repeat this Heist 2 times and choose "Threaten him at gun point" and "Fire it is" during the other heists
- Back on the fair -> "Talk to Amy" -> "Ask About Kaoru" -> "Kaoru's age"
- "Leave the park"
- "Stop to refuel"
- "Say you can help her with the porn magazines"
- "Ask for a reward" (Likes you +5) -> "What was she playing?" (Likes you +5) -> "Tell her.." all three stories (trusts you +5 each) -> "Reward ???" (Likes you +5) -> "Ask for more"
- Back on the fair -> "Talk to Amy" -> "Ask About Kaoru" -> "Kaoru's fighting skills"
- "Leave the park"
- "Stop to refuel"
- "Ask about her hoodie" (Likes you +5) -> "Say you can help her with the porn magazines"
- "Ask for a reward" -> "Reward: Strip" -> "Take her panties off" -> "Ask for another Blowjob" -> cum inside or over the glasses
- Back on the fair -> "Leave the park" -> "Stop to refuel" -> "Say you can help her with the porn magazines"
- "Ask for a reward" -> "ask her to fully strip again" -> "Fuck her" -> cum inside or over her body
- Back on the fair -> "Leave the park" -> "Stop to refuel" -> "Say you can help her with the porn magazines"
- "Ask for a reward" -> "ask her to fully strip again" -> "Go for the ass" -> cum inside or all over her...
That should be all for Kaoru in v0.2