The 8th Son? Are You Kidding Me? (Hachinan tte, Sore wa Nai Desho!) 28 (MF Books) [Light Novel]

[Machine Translation] Otto's ambitions are crushed by Vel and his team's success, and peace is returning to the world. And for this achievement, Vel gets the "maternity leave" she has longed for, with the King's approval. However, she is unaware of Roederich's clever plan, and ends up working on Akitsushima Island with her beloved children. Meanwhile, the former Marquis of Bremmertal is kidnapped by someone who transforms him into something other than a man and exploits the energy generated by his negative feelings of resentment and anger toward Vel. After he is no longer of any use, the former Marquis of Bremmertal is released into the wild for the fun of it, and begins to move to the island of Akitsushima to take revenge on the hated Ver.... As long as he has a grudge against Vel, he will regenerate infinitely! Act XXVIII, a great struggle against an unexpectedly strong enemy!

ヴェルたちの活躍によってオットーの野望は打ち砕かれ、世界に平和が戻りつつあった。そして今回の功績により、ヴェルは国王陛下のお墨付きで念願の「育休」を手にする。だが、愛しい我が子らとの日々の中へ、巧みに仕組まれていたローデリヒの策に気づけず、結局ヴェルはアキツシマ島で一仕事するのだった。一方、何者かに攫われたブレンメルタール元侯爵は、その者の手により人ならざるものへと変貌させられ、ヴェルに対する恨みや怒りといった負の感情から生み出されるエネルギーを搾取されていた。やがて用済みとなり、面白半分で野に放たれたブレンメルタール元侯爵は、憎きヴェルに復讐すべくアキツシマ島へと移動を開始するのだった...。ヴェルへの恨みがある限り無限に再生!?思わぬ強敵に大苦戦の第二十八幕!