Kernel Hearts fernet: Character Build & Spell Guide

Fernet is the first playable character introduced in Kernel Hearts and serves as the main protagonist of the story. She leads the MAHOU Unit during its exploration of the Tower, a mission assigned with the assistance of the Creator. Her role gives players a clear entry point into the game’s combat system while also placing her at the center of the narrative.

Fernet was born in Argentina and fights with a Saber. She also possesses telekinetic powers, which are represented through her two unique spells: Koka and Raiquen. Together, these tools make her a flexible character for players who want to combine direct melee pressure with ranged or summon-based support.

The official Fernet character reference on the Kernel Hearts Wiki identifies her as a relatively easy character to play. Her combos have forgiving execution, and her overall kit works well across different encounters.

Fernet is designed as an all-rounder with an emphasis on clear, easy-to-perform combos. This makes her useful for learning the fundamentals of Kernel Hearts, especially movement, spacing, spell timing, and the transition between melee and ranged pressure.

Her Saber gives her a direct way to engage enemies, but the character reference notes that her melee kit is comparatively weaker than her spell options. Fernet is therefore most effective when she does not treat close combat as her only source of damage. Instead, use her spells to soften targets, interrupt their approach, or create room before committing to a Saber sequence.

Kiting is another important part of her game plan. Kiting means maintaining distance while attacking enemies as they advance. Fernet’s spells support this approach, although pushbacks can influence enemy positioning and may require you to adjust your spacing quickly.

Fernet’s two unique spells define how she controls combat. Koka summons Fernet’s pet to assist by shooting at nearby enemies. Raiquen launches a bird that functions as a projectile. The two spells cover different engagement ranges and should be treated as complementary tools.

Koka is particularly useful when enemies are already near Fernet. Its close-range shots can add area damage, and the reference notes that Koka can be recast to stack its effect. This makes it a strong option when several enemies occupy the same space or when Fernet needs additional pressure during a melee exchange.

Raiquen is the more direct ranged option. It has good range and burst damage, allowing Fernet to threaten enemies before entering Saber distance. Use it to begin an encounter, punish an exposed target, or maintain pressure while moving away from danger.

Fernet’s role as the first playable character makes her a natural choice for learning how encounters flow through the Tower. Her kit rewards deliberate movement: cast from a useful distance, watch how enemies respond, and only then decide whether to approach with the Saber.

A strong beginner routine is to treat each encounter as a sequence of spacing decisions. Start outside immediate danger whenever possible. Raiquen can help establish pressure from range, while Koka becomes more valuable once enemies gather around Fernet. If the battlefield becomes crowded, use movement to separate targets rather than forcing a long melee exchange.

Her low complexity does not mean that every situation should be handled the same way. Fernet’s most important skill is recognizing when each tool has the greatest value.

Fernet is a strong fit for players who prefer flexible characters with straightforward execution. She supports several habits at once: learning basic combos, managing spell opportunities, controlling distance, and adapting to enemy positioning. This makes her accessible without reducing her tactical options.

Choose Fernet if you enjoy a balanced character who can shift between Saber attacks and supernatural abilities. She is also a good match for players who like kiting enemies, setting up attacks from range, and using summons or projectiles to influence the battlefield.

Players who want a highly specialized melee character may find her less satisfying. The character reference specifically lists a weaker melee kit and enemy pushbacks among the drawbacks to consider. Fernet remains versatile, but her best results come from using her complete toolkit.

Fernet’s design combines a clear narrative role with a practical combat profile. She is the MAHOU Unit’s captain, the story’s main protagonist, and the first playable character available for learning the game’s systems. Her Argentinian origin, Saber, telekinetic powers, and relationship with Koka give her a distinct identity within the cast.

From a gameplay perspective, her strongest qualities are accessibility, spell utility, and flexible positioning. Koka adds pressure around Fernet, while Raiquen extends her reach and provides burst potential at range. These abilities make it easier to control engagements without depending entirely on close-range combat.

For the most reliable results, keep Fernet moving, use Raiquen to establish safe pressure, summon Koka when enemies close in, and treat the Saber as a deliberate follow-up rather than an automatic first choice.