The Testament of Sister New Devil — Burst
Basara Toujou carries a heavy burden. As the stepbrother to the captivatingly powerful demonic sisters, Mio and Maria Naruse, he’s fiercely dedicated to their safety – shielding them from predatory demons eager to exploit Mio's unique abilities. But his protective duties are complicated by escalating political unrest brewing within the demon realm itself. When Mio receives a summons demanding her presence in that volatile world, she and her companions venture into danger despite Basara's concerns. Now deep within enemy territory, Basara finds himself facing an unprecedented challenge: to become stronger, unlocking hidden potential through unexpected experiences, all for the sake of safeguarding those he loves.

Basara found his life returning to a quiet rhythm, filled with the simple joys of his two sisters, Mio and Maria. Mio, the daughter of the departed demon lord, and Maria, her succubus sister, brought laughter and warmth to their days. As he…

Basara remained wary of the unseen force that twisted people to its will, yet he embraced the energy of the sports festival with Mio and Yuki. They laughed as they raced in the four-legged race, their youthful exuberance a tangle of sweat a…

He dispossessed Basara of the arm that wielded Bynhildr. Though pain seized him, his sealed power erupted, a destructive force unleashed. The tables turned as he pinned Ornis with his overwhelming might. But as he sought to silence Ornis pe…

As the peaceful faction drew nearer to the encroaching dominion of the demon lord, Basara journeyed with Mio to visit them. The reunion with Zest and Shella brought joy, yet an unsettling atmosphere clung to the air. Maria, however, seemed …

Ramsus sought to seize the power Mio possessed, and Basara, witnessing this, was consumed by fury at Ramsus’ disregard for her safety. The tension crackled in the air, poised to erupt. But Shella intervened, a calming presence amidst the st…

A summons arrived, bearing the decree of Leohart himself, calling them to the royal castle. Before the assembled group, Toujou Jin, Basara’s father, stepped forward, bearing further tidings from the king. A tournament would be held, a conte…

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The clash of forces had begun. After Mio’s victory in the initial round, Maria stepped into the arena for the next. Her adversary was Lars. Employing her formidable strength, she engaged him in close combat. Yet, experience and raw magical …

After years in concealment, Basara emerged to face Leohart. The two demon blades met in a whirlwind of steel, a fierce dance of power. Basara fought with desperate skill, yet Leohart’s strength was undeniable. He pressed his advantage, but …

The commander of heroic spirits, consumed by a frenzy, sought to extinguish the lives of Basara, Mio, and Leohart. Would they prevail against this supreme being? Meanwhile, Maria, Yuki, and the others concluded their individual struggles. "…


