If you are not doing much damage, increase your power. If you have enough damage bring CC. I'm not sure but I think you can cancel hidan's mystery with scarlet blaze's sleep. Use ninjas who c*e acupuncture, interruption etc. Shizune is not a good ninja to use in your team

you need kabuto clone to beat this instance and one ninja with an interrupt to block karin mistery otherwise she will heal if you can't kill her using your combo that will start from action 1.