Yakuza 0

You can start the Telephone Club substories in chapter 5 once you have your new business suit. The location you want is the Teltel Club on the south eastern part of the map.

You can choose from seven sub stories and nine girls, only three of whom count for the achievement (you only need one). They show up randomly, so it's possible to get the same girl more than once.

There are three girls for each of the three bikini colors (blue, white and green). I won't mention the colors of the bikinis the duds are wearing during the phone call because they're not needed for this achievement. The dud ones have the same script as their good counterparts and look like them also.

In order to answer the phone, you need to do a QTE. The ones you want have a faster QTE (1 second, compaired to 2 seconds, though I've seen faster than 1 second).

Next, you need to pick and choose what you think the girl on the other end wants to hear. These are random but always pick the same thing when you see it. Use like it's a rotary phone (old school phone) and aim the target at what you want to say. Now, release when you think you're gonna "shoot" what you want. For the first set, you need to do it twice. For the second and third sets, you need to say a minimum of three things.

Now, you have to hit okay question you're supposed to ask her. They're quickly moving in a counter clockwise circly. Choose Body.

Repeat the process two more times, asking about her face and then if you can meet.

Here are the substories:

31: The Innocent Hook-up
Riku (blue bikini). Choose "Girl in front" to complete it successfully.*

#32: The Sexy Hook-up
Ayaka (white bikini). Select "Move in for a better look", followed by "Farther woman" to successfully complete this substory.*

#33: The Flirty Hook-up
Haruki (green bikini). Select "Further woman" to complete it successfully.*

These are the dud ones:

With the exception of the one where she's a no show (next one I think), you can lose health.

#34: Sakura Shock
Asakura
Sakuraoka
Sakurai

#35: Verbal Warning
Mirei

#44: The Predator's Call
Maria

#45: A Mother's Touch
Sayuri

NOTE: Once you're successful in getting a date with Riku, Ayaka, or Haruki, you can then watch her video at Gandhara and even invite her on dates when you play minigames.

*=I would like to thank CyricZ from GameFAQs, whose guide helped me put mine together.

https://gamefaqs.gamespot.com/pc/241144-yakuza-0/faqs/74451/...

Starting with chptr 5, and wearing the white suit, you can enter the Kamurocho Teltel Club. The minigame has 9 girls to choose from, but only 3 are dateable, Riku, Ayaka, and Haruki. (Another guide states that 7 of the 9 have substories, so don't focus only on these three.)

Choose a long session unless you really know what you are doing. Build up their affections by choosing the right answers or waiting until the answer is highlighted. Riku is one of the first girls to appear and should give you the award. If you miss her, the next one is about 2 minutes later.