Gokutsuma Days: Gokudou Sankyoudai ni Semaretemasu

Sakura, a reclusive otaku with severe social anxiety, unexpectedly saves the life of the Amogumi clan’s leader. In a shocking turn of events, she is named his highest-ranking wife. The leader then issues a decree to his three grandsons: whoever manages to defeat Sakura will s쳮d him as the next boss. The contenders are a distinct trio. The eldest son is gentle but physically weak; the second is fierce and aggressive; and the third is a cool-headed intellectual. Despite their differing personalities, all three are highly skilled and stubborn. How did this shut-in become the ultimate yakuza wife? Reluctant at first, Sakura soon finds herself at the center of a chaotic "Yakuza Harem."