October 9th - 25th: Gather information about Namatame. The Investigation Team will eventually confront him, leading to his confession and the appearance of the 'Heaven' dungeon. The deadline for this dungeon is November 5th.

October 26th: The 'Heaven' dungeon becomes available. This dungeon is visually stunning and features some of the toughest Shadows yet. It's also quite long, so be prepared for multiple visits.
Heaven Key Shadows:
- Jotun of Evil: Weak to Fire.
- Phantom Lord: Weak to Ice.
- Chaos Cyclops: Weak to Wind.
October 27th - November 4th: Explore Heaven. Shadows here have varied weaknesses, and many have high resistances. Ensure your party is well-leveled (around level 60-65) and equipped with the best gear. The dungeon features a unique mechanic where you need to find specific 'Heaven's Doors' to progress. You'll encounter a mini-boss, the 'World Balance', which is weak to Electricity.
November 5th: If you've reached the top floor, you'll face the dungeon boss.
Boss: Shadow Namatame (Kunino-sagiri)
- Weakness: None.
- Resistances: None.
- Strategy: This is a multi-phase boss fight. Kunino-sagiri has no weaknesses but can absorb various elements depending on its current state. It will frequently change its elemental affinity, so pay attention to Rise's analysis. It can also use powerful Almighty attacks and inflict status ailments. Its most dangerous attack is 'Quad Converge', which charges up and then unleashes a devastating elemental attack. You can interrupt this by hitting it with the element it's currently absorbing. Use buffs and debuffs constantly. Keep your HP high and be prepared for a long, strategic battle.
After defeating Kunino-sagiri, Namatame is rescued. The Investigation Team now faces a critical choice regarding his fate. This choice is crucial for determining which ending path you take. Do NOT throw him into the TV. Choose the options that lead to further investigation.