BrownDust-ism.

Addicted To Gacha

Underground Evil Castle 11 to 15F

Mobs here have very high HP. Thus mercs with skills that determine damage by enemy's HP%, such as Angelica, Bellasier, Ridel, or Frederica are very useful here.

☆☆☆ Underground 11F ☆☆☆
If Iris with shield x 2 can survive until Ridel kills 2, Iris will become invincible state.
  1. ★6 Iris+15
  2. ★6 Isabel+15
  3. ★6 Shoman+14 (Kill 3, 2, 8)
  4. ★6 Ridel+15 (Kill 2, 8)
  5. ★6 Viola+10 (Kill 5, 7)
☆☆☆ Underground 12F ☆☆☆
Charmed 2 to 6 will kill each other.
  1. ★6 Lulu+14
  2. ★6 Iris+15
  3. ★6 Isabel+15
  4. ★6 Esther+14 (Kill 1)
  5. ★6 Viola+10 (Kill 7, 9, 8)
  6. ★6 Orienne+10 (Inc. DMG Boost)
☆☆☆ Underground 13F (Strategy 1) ☆☆☆
  1. ★6 Refithea+15
  2. ★6 Ceres+10
  3. ★6 Michaela+15
  4. ★6 Alche+10 (Kill 1, 2, 3|4, 5, 6)
  5. ★6 Esther+14 (Kill 7, 8, 9)
  6. ★6 Kaoli+12
☆☆☆ Underground 13F (Strategy 2) ☆☆☆
  1. ★6 Isabel+15
  2. ★6 John+10
  3. ★6 Veronia+14
  4. ★6 Alche+10 (Kill 1, 2, 3|4, 5, 6|8)
  5. ★6 Angelica+13 (Kill 7|9)
  6. ★6 Benshina+14
☆☆☆ Underground 14F (Strategy 1) ☆☆☆
Ridel needs to kill 8, and 9 before the charmed boss attacks, other wise the boss will not kill 1.
  1. ★6 Bellasier+14 (Kill 2, 3|4, 7)
  2. ★6 Orienne+10 (Inc. DMG Boost)
  3. ★6 Refithea+15
  4. ★6 Veronia+14
  5. ★6 Ridel+15 (Kill 8, 9|5)
  6. ★6 Mia+10
☆☆☆ Underground 14F (Strategy 2) ☆☆☆
  1. ★6 Bellasier+14 (Kill 3, 2, 4|7, 6)
  2. ★6 Mary+10
  3. ★6 Michaela+15
  4. ★6 Ridel+15 (Kill 8, 9)
  5. ★6 Lulu+14
  6. ★6 Angelica+13 (Kill 5|1)
☆☆☆ Underground 15F (Strategy 1) ☆☆☆
If Refithea is equipping shield x 2, then there is a chance she might get killed. If that happens, try again. Bellasier is using shield x 2.
  1. ★6 Shoman+14 (Kill 6, 7, 8)
  2. ★6 Refithea+15
  3. ★6 Veronia+14
  4. ★6 Bellasier+14 (Kill 2|1, 3, 5)
  5. ★6 Frederica+10 (Kill 4, 9|8)
☆☆☆ Underground 15F (Strategy 2) ☆☆☆
  1. ★6 Refithea+15
  2. ★6 Veronia+14
  3. ★6 Bellasier+14 (Kill 2, 1|6, 7)
  4. ★6 Taylor+13 (Kill 3, 4, 5, 8|9)
  5. ★6 Gloria+4
☆☆☆ Underground 15F (Strategy 3) ☆☆☆
Depending on critical hits, you may not be able to kill mobs, or Bellasier may get killed. So try few times.
  1. ★6 Veronia+14
  2. ★6 Bellasier+14 (Kill 2|1, 5, 8, )
  3. ★6 Mary+10
  4. ★6 Frederica+10 (Kill 4, 9|7)
  5. ★6 Christina+15 (Kill 3, 6)