Tips

• Stage 3: Red Specials do 6x damage
• Stage 4: Nero (the jack-in-the-box) DEF increased by 10,000 (effectively 90% DR)
• Very simple JFD, 3 Neros in sequence, ~700K/1M HP each. No chance of receiving damage outside of self-inflicted sources.
• Use DEF down and blast with red special EX skills.
  • Some red strikers like D.Haruka are viable as well here, if your red special roster is lacking.
  • All DEF down students are pretty interchangeable here and ONLY need investments into their DEF down skills. You don't need a UE60 5MMM 10/10/10 25/25/25 Fuyu with 50+ affection, she's going to inflict the same debuff as a completely uninvested one with just lv5 EX.