Special Technique - Retribution
Requires 1000 Rage. Deals a large amount of damage to the enemy and increases troop ATK by 12%. Lasts 3s.

A Legendary Ranged hero built as the strongest Ranged-troop teammate, buffing Louis directly and dealing bonus damage to Infantry troops.
Nakano Maaya is designed around pairing with Louis: her formation description states outright that her skill increases his ATK and damage. Her rage skill deals a large burst of damage while boosting troop ATK for a few seconds, and her passives layer on Ranged ATK and march speed bonuses, a chance at bonus damage on basic attacks, and an extra ATK/speed boost when troop HP drops below 50%.
Her awakening, Special Technique - Kiai, is a brand-new skill rather than an upgrade: it increases damage dealt to Infantry troops by 10%, giving her a clear matchup advantage against Infantry-heavy compositions. Skill priority should focus on Skill 1 first to hit harder against Infantry troops once awakened.
Requires 1000 Rage. Deals a large amount of damage to the enemy and increases troop ATK by 12%. Lasts 3s.
Increases Ranged troop ATK by 4.5% and march speed by 4.5%.
Basic attacks have a 10% chance to deal additional damage to the target.
When troop HP is below 50%, increases Ranged troop ATK by 8% and march speed by 6%.
Special Technique - Kiai
New Skill. Increases damage dealt to Infantry troops by 10%.

Explicitly named in Nakano Maaya's in-game formation description ("Nakano Maaya's skill increases Louis' ATK and damage").
She is constantly vigilant - like a great, silent cat. Even before she encountered the survivor group "Spider Lily," who sought refuge in the shrine, she had already survived for a long time in the "Fallen Territory" - a place ravaged by zombies. There, she hid together with her sister Mayuri, who later became a zombie herself.
As an ordinary high school girl, Maaya's ability to survive seems almost like a miracle - made possible only by her unwavering will and strong survival instinct. She fights with a .20-caliber rifle that she recovered from the corpses of self-defense force members.
Even more astonishing, however, is that Mayuri, although now a mindless zombie, has never attacked Maaya. It even seems as though Maaya has learned to communicate with zombies to some degree.
Maaya is firmly convinced that there is a cure for the zombie infection - and that her sister can one day be healed. This hope is her greatest obsession.