You have to achieve 100% accuracy in a Lv.6 or Lv.6+ stage.

Song:

• Desastre by L. Minatsu. (HARD LVL. 6)
  
  
  

Character:

• Rin Bad Girl.

---

Song:

• 8Bit Adventurer by Lime. (EASY LVL. 6)
  
  
  

Character:

• Rin Bad Girl.

---

Song:

• SKY HIGH by P4koo feat.rerone. (MASTER LVL. 6)
  
  

Character:

• Marija The Girl In Black.

Elfin:

• Any elfin (I used Rabot-233 a but it doesn't change anything).

Songs:

• Daruma-san Fell Over by Ncha-P. (MASTER LVL. 6)
  
  
• Maharajah by Alice Schach and the Magic Orchestra. (MASTER LVL. 6)
  
  

Character:

• Rin Bad Girl.
  
• Marija The Girl In Black.

Elfin:

• Any elfin can be used. It doesn't change everything.

good luck & hope you can get this hard achievement !
✦.。.:*・°✦.。.:*・°✦.。.:*・°✦.。.:*・°✦.。.:*・°✦.。.:*・°✦.。.:*・°✦.。.:*・°✦*・°✦.。.:*・°✦
ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ┌────── ⋆⋅✦⋅⋆ ──────┐
ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ 𝘮𝘺 𝘨𝘶𝘪𝘥𝘦𝘴
ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ└────── ⋆⋅✦⋅⋆ ──────┘

✦.。.:*・°✦.。.:*・°✦.。.:*・°✦.。.:*・°✦.。.:*・°✦.。.:*・°✦.。.:*・°✦.。.:*・°✦*・°✦.。.:*・°✦