Chapter 7
Pre‑endgame ramp; bosses gain new patterns. Prep counters.
Summary
Invade the Bio-Sanctum atop Sky Tower, stabilize the failing ecospheres, and liberate the captured councilors before the sanctum AI reboots. Recommended level: 22–24 with memory cap 26–28.
Branches & Choices
- Choose the Atrium Offensive for straight combat and faster access to the apex.
- Take the Rootway Infiltration for stealth skips, rare materials, and hostage rescues.
- Optional: Purge all three ecosphere cores to weaken Dominimon Prime’s shield phases.
Boss Strategy
- Weakness: Plant (takes +45%); resists Light and nullifies Poison.
- Phase changes at 70%/40%; bring cleanse for Sap/Bleed and shield breakers.
- Speed target: 180 to act before the Sanctum Ray opener.
Collectibles Checklist
Prep Checklist
- Bring at least one Plant attacker (Palmon → Togemon or Lalamon → Sunflowmon) to punish Dominimon’s weakness.
- Equip Bleed Guard accessories or Cleanse chips to handle Sap/Bleed combos in Atrium fights.
- Carry 4–5 Barrier Breaker items and 3 SP Spray for the shield-heavy apex battle.
- Slot an Ultimate healer (e.g., Salamon → Angewomon) for wide-range cleanse and mitigation.
- Use technician services from Chapter 6 to respec memory allocations for Plant coverage and support techs.
Route Breakdown
- Sanctum Deployment. Brief with Mirei, pick Atrium vs. Rootway entry, and receive ecosphere purifier module.
- Atrium Offensive. Fight Bio-Guard waves, disable two sanctum turrets, and maintain containment fields to earn +5 Strategist affinity.
- Rootway Infiltration. Navigate vine-laden maintenance corridors, solve nutrient valve puzzle (Green → Blue → Amber), and free hostage councilors for Supporter affinity.
- Ecosphere Purifiers (Optional). Cleanse each biosphere (Forest, Coral, Desert) to reduce Dominimon’s shield strength and unlock Memory Chip Sigma.
- Verdant Sigil Vault. Hidden chamber in Rootway route; defeat MegaKabuterimon pair to claim accessory boosting Plant damage.
- Sanctum Apex. Reunite squads, trigger the Sanctum Override puzzle (align runes in order Sun → Moon → Seed) to disable hidden boss flag.
- Boss: Dominimon Prime. Two-phase fight with shield cycles; use Plant burst during exposed windows and cleanse Sap immediately.
- Aftermath. Councilor liberation scene grants double affinity bumps, unlocks Chapter 8 frontier routes, and awards Dominimon scan data.
Choice Outcomes
| Decision | Immediate Outcome | Long-Term Impact |
|---|---|---|
| Atrium Offensive first | +5 Strategist affinity, faster apex reach | Unlocks “Sanctum Volley” tactic for Chapter 8 sieges |
| Rootway Infiltration first | Verdant Sigil accessory, hostage rescues | Opens Councilor support quests and Plant research buffs in Chapter 8 |
| Purge all ecospheres | Memory Chip Sigma, Dominimon shields weakened | Reduces Chapter 8 environmental hazards by 20% |
| Skip purifier objectives | Quicker boss access but full-strength shields | Environmental hazards remain at max in next chapter |
| Complete Sanctum Override puzzle | Disables hidden boss enrage mechanic | Grants access to post-game Sanctum Challenge arena |
Boss Data: Dominimon Prime (Bio-Sanctum Guardian)
| HP | 6,120 | Shields activate at 70% and 40% HP |
|---|---|---|
| Element | Light/Wind | Deals Light tech damage with Wind cleaves |
| Weakness | Plant (+45%) | Plant crits remove shield stacks instantly |
| Resistances | Light (-50%), Poison (Immune) | Halves Electric and absorbs Poison |
| Speed | 152 | Acts first unless you reach 180+ SPD |
| Notable Moves | Sanctum Ray, Verdant Drain, Aerial Purge | Verdant Drain applies Sap + Bleed; cleanse quickly |
Collectible Details
- Verdant Sigil: Rootway vault reward; grants +15% Plant damage and +10% status resist.
- Sanctum Override Flag: Solve rune puzzle to disable Dominimon enrage and unlock post-game arena.
- Memory Chip Sigma: Obtained after purging all ecospheres; increases memory cap by 4.
- Dominimon Data Shards: Awarded post-boss; 100% scan unlocks Plant tactic upgrade in Chapter 8.
- Councilor Support: Rescued councilors provide passive stat buffs and new missions next chapter.
Video Walkthrough
Chapter 7 – Video Briefing