Here is the full list of all 14 Sakura Succubus 6 achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
Get suprised at work
The Person you've called...
Hear the maid's threat
Kiss HIfumi
Hifumi pulls Stephania into a hug
Hifumi's looking after Hazel
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Hazel won the Competition
Watch Hazel workout
Kiss Astoria's princess
Call Steffy your waifu
Stephania is warming up to you
Personal made alarm
Meet up with Ayu and Cosmos