| Achievement Category | Inter-Knot Hot Topic |
| Description | In non-Joint Investigation modes, equip three Agents with 6 “Phaethon’s Melody” Drive Discs each and complete 1 battle. |
“Phaethon, Oh Phaethon!”
| Achievement Category | Inter-Knot Hot Topic |
| Description | In non-Joint Investigation modes, equip three Agents with 6 “Phaethon’s Melody” Drive Discs each and complete 1 battle. |
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