Her Majesty’s Swarm manga
A young woman, net nickname “Mushi-nee,” finds herself sucked into a world not unlike the online real-time strategy game that was her only escape. She had captained the “Arachnea” faction…but it’s one thing to do on a computer, and another to find herself face-to-face with giant arachnids who hail her as queen! But rather than shrink from her fate, she steps up…to become the conquering queen she knows she can be!
Her Majesty’s Swarm/ Joou Heika no Isekai Senryaku / 女王陛下の異世界戦略（ストラテジー） / 女王陛下的异世界战略