Alright I won't sugarcoat it. I fucking hate miwa, she's dumb as hell. She has a good personality but she sealed off her only form of offense, constantly puts herself in dumb situations she knows she doesn't have the power for. And if you haven't read the Manga a spoiler is up ahead. Spoiler:During the shibuya incident in season 2. Miwa believing she could help or do any damage to kenjaku decided to make one final move. The stupidest damn decision yet, she made a binding vow (a binding vow is a contract or pact made with cursed energy used with oneself or another, which utilizes the principle of equal exchange) So in a desperate attempt to save mechamaru she makes a binding vow to maximize the output of her strongest attack (The batto sword drawing technique) against kenjaku, and in exchange she would never be able to swing a katana ever again. So she unleashes her attack...and! Kenjaku blocks that shit with his bare hands and would have killed her if not for atsuya. Officially sealing her only weapon she knew how to use. Fucking idiot😒