[Octopath Traveler 0]Reime & Aira complete strategy guide! A thorough explanation of the strongest hidden character's full performance, detailed acquisition route, and the double experience value revolution[Octra 0]

In order to gain true strength in Octopath Traveler 0 (hereinafter referred to as Octopath 0), it is essential to have hidden characters who cannot be recruited through story progression alone. Among them, two of the strongest classes boast particularly overwhelming performance and fundamentally change combat efficiency and training speed: the swordsman Reime and the scholar cat Aira. Reime stands at the pinnacle of single-target firepower with multi-hit attacks, instantly destroying shields while minimizing BP consumption. Furthermore, by placing it in the monster arena, it has a resident effect that dramatically increases the amount of experience points gained from 1.8 times to nearly 2 times, overturning common sense about leveling up. On the other hand, Isla is the pinnacle of non-elemental magic, inflicting devastating damage to both the whole group and a single target, and strengthens the entire party with support abilities that can cause critical hits even with attribute attacks. By recruiting these two early on, the time to clear boss battles will be dramatically shortened, and mid-game and later rounds and high-difficulty content will become much easier.

In this article, we have thoroughly compiled a list of all abilities for both characters, detailed acquisition procedures, examples of actual battle formations, and the optimal route for farming experience points. For players who seriously want to conquer Octora 0, please refer to this guide and get Reime and Aira immediately.

1. Complete performance explanation of Aira: Dual wielding of destructive power of non-attribute magic and party strengthening

Isla is a hidden character in the form of a cute scholar cat, and Job is a scholar. He uses books as a weapon, and works as a firepower supporter who uses non-attribute magic to attack all areas and strengthen himself and his allies. The biggest appeal is that the support ability “Wisdom of the Sage” allows critical attacks to occur even with attribute attacks, which stabilizes the critical rate for magic-specialized parties. In addition, “single magic” converts specific general magic to a single target and greatly increases its power, so the instantaneous firepower in boss battles easily exceeds 9999, and 2 boosts can deal more than 20,000 damage. The special move “Cat Great Magic Artenia” is a one-hit deadly weapon that uses up all SP to unleash super firepower and kill a single boss in one blow. It is designed with the secret of breaking the damage limit, and can be used to take advantage of the damage upper limit of 99999 in the second half.

List of all Aira's battle abilities

Ability name	Attributes/SP consumption	Effect details
Round trip slap	Book attribute / –	Deals damage to all enemies twice with the book. Ideal for mopping up small fish in the early stages.
meteor magic	Attributeless / –	Deals heavy non-elemental damage to all enemies. Powerful for follow-up after a break.
cat dodge	– / –	Gives a speed-up effect to itself, and also gives an effect that always evades physical attacks multiple times. It also functions as a tank.
cat cheering	– / –	Gives the effect of increasing attribute attack power and increasing evasion to all front and rear allies. Enhances the durability and firepower of the entire party at the same time.
curl up	– / –	Greatly recovers your HP and SP. It has excellent self-sustainability in long-term battles.
Big round slap	Book attribute / –	Deals book damage to all enemies 3 times. Specializes in shield sharpening.
comet magic	Attributeless / –	Deals heavy non-elemental damage to all enemies. The power increases when activated from the rear.

List of all support abilities for Aira

Ability name	Effect details
wisdom of the wise	Critical attacks will now occur even with attribute attacks. Dramatically improves the stability of magic parties.
Maximum SP +50 up	Increases the wearer's maximum SP by 50. Prevents SP depletion.
Attribute attack +50 up	Increases the attribute attack power of the wearer by 50. This is essential for increasing firepower.
Single magic	Increases the power of specific magic by making it unique. Stably outputs over 9999 damage to bosses with Mercury magic etc.

Isla's main point of operation is to maximize the power of comet magic by positioning herself in the rear, strengthen her allies with cat support, and use meteor magic to destroy the entire team. If you use Gokui and give “Sage's Wisdom” to other wizards as a select ability, the critical rate of the entire party will increase. This performance is top class as Octra 0's magic attacker, and in combination with Reime, it forms an invincible firepower line.

2. Super detailed guide to obtaining Aira: From collecting 5 letter fragments to liberating Sage's Island

To recruit Aira, you must collect 5 letter fragments and clear the final event on Philosopher's Island. It is easy to collect fragments in parallel with the story progression, and it is efficient to unlock the animal talk function. If you collect all 5 pieces, an event will automatically occur and you will be able to travel from Rippletide to Sage's Island by boat. Open the door at the back with an invitation, and select “Add as Friend” during the event process. The recommended level is 40 or higher, and no battles will occur, but strong enemies will appear on the way to collecting fragments.

Details of where to get the 5 letter fragments and tips for collecting them

1. 1st photo: Bookshelf inside the building in Theatopolis (Flatland)

   In the center left area of ​​Theatopolis, enter the building and examine the bookshelf. Tap the shining part to get it. A good guideline is right before the event where the scholar joins Alexia. The surrounding area is safe and suitable for beginners.

2. 2nd photo: Inside the Tamasui Cave

   Examine the floor near the treasure chest in the back of the Gyokusui Cave that you visit as you progress through the story. There are many swarms of enemies, so make sure to form a team with all-out attacks to break through. Bring lots of HP recovery items.

3. 3rd piece: Obtained from the cat in Atlas Dam (after unlocking animal talk)

   After unlocking the animal talk feature, talk to a specific cat in Atlas Dam. Obtain it as a reward when you clear the cat event. Release animal talk early and aim for multiple rewards.

4. 4th photo: Back road to Herminia-tei

   Proceed through the hidden passage behind the Herminia Pavilion in the area related to millionaire Herminia and obtain it as a shiny item. There are many traps and enemies, so place someone with exploration skills in the front row.

5. 5th photo: The Bestower of Wealth Chapter 3 “Kifu’s left ball disguise” area

   Obtained in the hidden room in Kifu's left ball disguise zone during Chapter 3 of the substory “The One Who Gives Wealth.” The target is right before the boss. Clearing this chapter will also serve as a stepping stone to obtaining Rayme.

Now that your invitation is complete, you can head to Philosopher's Island. If you open the back door of the island and proceed with the cat event, Isla will join you. The time required is about 2-3 hours, including the story. After obtaining it, immediately improve your support abilities and strengthen your party.

3. Thorough performance analysis of Reime: Single strongest firepower + infinite BP monster

Reime is a female swordsman from a far eastern country, her job is swordsman, her weapons are swords and spears, and her magic attribute is darkness. Her CV is Shizuka Ishigami, and the setting of her rising from poverty as an undefeated strongman from the East is really cool. The core of its performance is its multi-hit attack storm, which instantly destroys shields and maximizes break damage with its “Arashitsuki no Tachi” (sword 3-5 times, SP 36) and special move “Higan Renba” (sword 6 times). The support “occasionally does not consume BP” (BP is free at 50%) allows for full boosts, “folding” increases power during breaks, and “physical attack +50 increase” permanently strengthens. As a resident effect, the experience value increases by 1.8-2 times when placed in the monster arena, which is a revolutionary efficiency of 1300 → over 5000 for Gigantius class enemies.

List of all Reime's battle abilities

Ability name	Attributes/SP consumption	Effect details
double slash	sword / 8	Sword damage to a single enemy twice. It's basically a series of attacks.
handle	– / 9	Select a weapon to deal single damage + physical defense down for 2 turns. It also serves as a debuff.
shadow master	darkness / 8	Deals dark damage to a single target twice. Excellent as a multi-stage dark attribute.
double thrust	Spear / 8	Single spear damage twice. Compatible with spear weaknesses.
return sword	sword / 14	2 sword counterattacks when hit by physical bullets (ignoring shield). It is specialized for counters.
Mushin Hoko	Spear / 18	Spear damage when all buffs are erased (power increases proportional to the number of buffs erased). It is for burst.
Storm Moon Long Sword	sword / 36	Single sword damage 3-5 times. This is the royal road to shield destruction.

Reime's support ability list

Ability name	Effect details
Sometimes I don't consume BP	50% chance of no BP consumption. This is the key to continuous firing.
folding rack	Increases the power of multiple attacks during break.
Physical attack +50 up	Physical attack power +50.
Attack refinement	The special gauge increases slightly by hitting physical weak points.

Reime is the final weapon that specializes in single bosses, and you can get the “secret to permanent physical improvement” as a reward by maximizing the relationship value. If you increase physical attack with equipment, 100,000 damage is realistic.

4. Reime Joining Strategy: After Chapter 3 of The Bestower of Wealth, Complete Steps for 23 Battles in the Underground Arena

The condition for joining is after clearing Section 3, “The Bestower of Wealth” Chapter 3. Speak to DeVecchio at the Old Tavern in Woodland Victor Hollow Old Town and head to the Underground Arena. Recommended level 60, Reime battle will occur if you win multiple battles. SP/BP management is the key to battle.

Detailed steps and boss strategy

1. Go to Old Town Old Tavern → DeVecchio Conversation → Underground Arena.
2. Alligator fight: HP is high, but it's about the same as a small fry. Kill them instantly with high firepower.
3. Balanga battle (3 henchmen, 13 shields): Wipe out with a volley of arrows/fire.
4. Battle against Chirlitta (shield 24, magic range): Prioritize defeating the cronies.
5. Battle against Reime (HP 440000, Shield 29): A counterattack will occur when hitting the weak point. Sharpen the shield of the axe-wielding Fen with Daisan Nado Gokui, withstand Higan Renba and Mushin at max BP with the Shield of Hope, and break repeatedly. Join with victory + increase power and influence.

You will get Rayme by clearing everything. The difficulty level is high, but the reward value is tremendous.

5. Optimal party formation and actual battle verification: Instantly kill the boss with Reime & Aira

Recommended formation: Front row – Reime (main firepower), Fenn (shield scraper), Viator (tank), Back row – Aira (magic firepower), Alexia (range), Steer (recovery).
Verification example: Full boost of Arashigetsu Tachi will instantly destroy the shield, Aila Comet magic will do 20,000 damage, and finish with Rayme Higan Renba. It is possible to clear the boss battle in 3 turns. All characters can be strengthened by sharing secrets.

6. Reime's experience value farming manual: Efficiency more than double when placing monster arena

After setting up the monster arena, place Reime. Gigantius-class experience points go from 1300 to over 5000, which is revolutionary at high levels. Best spot: West Valore Forest Path (level 23, Catlyn appears). It becomes fastest when used in combination with grape juice (experience points +25%). In combination with the training center, you can also grow spares with a 70% share.

7. Obtain Reime & Aira to completely conquer Octora 0: Final summary of essentials

Reime and Aira are the strongest hidden characters with the triple signature of firepower, efficiency, and stability. Obtaining it will bring about a revolution in training, and the final boss will be an easy victory. Collect them early, advance your mastery, and enjoy the true Octra 0. If you follow this guide, you will get the best strategy results.