Moukaku spearheads leadership at Nanban Academy alongside her sister Moyu. Before the main series events, she and Moyu launched an ambitious campaign to conquer the entire Kanto region, only to face decisive defeat against leaders from Nanyo, Seito, and Kyosho. This loss prompted profound introspection in both sisters, fundamentally altering their perspectives on life and conflict before their withdrawal from the ongoing struggles. At the outset of *Xtreme Xecutor*, Moukaku strategically allies with Kentei, signaling her re-engagement with the intricate power plays between the schools. She wears an eye-catching yellow outfit: revealing shorts, a sleeveless jacket exposing her bra, a peak hat, and boots. Personality-wise, Moukaku maintains a condescending edge, habitually punctuating her speech with the derogatory "Dumb-ass" (馬鹿野郎, baka-yarō). However, her shared defeat with Moyu catalyzed a transformation, fostering a more reflective mindset within her. In combat, Moukaku wields a distinctive modified Chinese ring adorned with thorn-like ends. This versatile weapon serves dual functionality: as a melee instrument for close-quarters combat and as a projectile for targeted ranged attacks.