Here is the full list of all 14 SENRAN KAGURA Reflexions achievements.
Changed a character's outfit.
Performed the Ultimate Course in Glorious Reflexology.
Cleared Asuka's New Idol arc.
Cleared Asuka's Classmate arc.
Cleared Asuka's Woman Warrior arc.
Performed the Fantastic Course in Glorious Reflexology.
Cleared Asuka's Sister arc.
Cleared Asuka's Tutor arc.
Performed the Luxury Course in Glorious Reflexology.
Cleared Asuka's Present arc.
Cleared Asuka's Club Junior arc.
Performed the Royal Course in Glorious Reflexology.
Obtained all achievements.
Gathered all of Asuka's Heart Pieces.