Boomer

Boomer is an S-rated Crimson Monkey Kong Skeleton Bombardier created by Eiko and Fei Fei through Skeleton Generator. Its ruby-like body, explosive attacks, and adaptable statistics make it one of Eiko’s principal summons and the automatically designated commander of her Animated Undead Army.

Biography

Heaven’s Gate and the continental wars

Eiko and Fei Fei create Boomer by fusing two Beast Cores, Blast Bombs, and Skeleton Bombs in the Skeleton Generator. The newly formed creature enthusiastically accepts Eiko’s uncertain choice of name and is automatically made her army commander. It soon trains beside Eiko against Astra; although the pair lose, making Astra expend substantial effort demonstrates the practical promise of the experiment and inspires Lux to consider further fused skeletons. Boomer then serves in field operations, including forest diversions and the rescue of evacuees, where Dynamite Punch knocks a Diabolical Doom Mosquito away from Cethus. Its intervention saves time and lives even though the rank gap prevents its explosive strikes from deciding that battle alone. (Chapters 516–519, 521, 546, 558)

The Dragon kingdoms and the Abyss

Boomer remains among Eiko’s four principal skeleton summons as the guild prepares for larger campaigns. Its explosive punches and kicks overlap with the group’s bombardment role, while its Blast Bomb ability gives it a distinct ranged option. During preparations for the Divine Empire invasion, it also helps manufacture Blast Bombs, turning the specialist skill used in personal combat into logistical support for a wider army. The latest evidence therefore shows development through application rather than a new form: Boomer is still Eiko’s active summon, but its contribution expands from duels and rescues to munitions production. (Chapters 663, 690)

Appearance and personality

Boomer is a two-meter-tall skeletal Monkey Kong whose entire body resembles red ruby crystal rather than ordinary bone. It communicates through gorilla-like noises, chest thumping, and action rather than spoken dialogue. Its delighted response to its name and willingness to carry Eiko and Fei Fei show an affectionate, obedient temperament, while its battlefield conduct is direct and protective. No independent goals or disobedience are shown; it exists as Eiko’s loyal summoned creature. (Chapter 516)

Explosive abilities

Adaptive summon and Crystal Body

Boomer’s statistics always equal those of the summoner, allowing its baseline strength to scale with Eiko rather than remain fixed at creation. Crystal Body grants twenty-percent resistance to both physical and magical attacks, supporting an all-rounder role in melee and at range. Only one Crimson Monkey Kong Skeleton Bombardier can be summoned at a time. Boomer’s creation also consumed its fusion materials permanently, while the Generator—not Boomer itself—entered a one-week cooldown. (Chapter 516)

Bombardment and explosive melee

Boomer uses Blast Bomb at range and Dynamite Punch, Dynamite Kick, Dynamite Body Slam, and Leap in close combat. Bomb Specialist gives explosive abilities a twenty-five-percent chance to deal double damage, a ten-percent chance to deal triple damage, and a five-percent chance to deal quadruple damage. These are chances rather than guaranteed multipliers, and a large rank disparity still limits results: Dynamite Punch can interrupt a superior monster and protect Cethus but cannot overcome that enemy by itself. The same specialization lets Boomer assist in producing Blast Bombs outside combat. (Chapters 516, 558, 663, 690)

Relationships

• Eiko: Eiko creates, names, summons, and commands Boomer; its statistics scale to hers and it leads her Animated Undead Army. (Chapters 516–519)
• Fei Fei: Fei Fei contributes to Boomer’s fusion and shares Eiko’s delighted first interaction with it. (Chapter 516)
• Astra: Boomer and Eiko train against Astra, losing but forcing him to work hard for the victory. (Chapter 517)
• Cethus: Boomer uses Dynamite Punch to interrupt a Doom Mosquito attacking Cethus during the evacuation battle. (Chapter 558)

Items

• No generated inventory item is assigned to Boomer’s article.