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
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Hifumi's looking after Hazel
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