Oh No! I’ve Become the Frail White Moonlight of the Witches!

My name’s Su Ran. Full-blooded man, through and through. So why the hell did I get a Witch System? [As a fellow witch, please assist the newly awakened witch Isa in escaping the Hounds. Reward: 1x Witch’s Healing Potion.] Flat on my back, unable to move, I peek under the blanket at my trusty little bro… Then glance at Isa’s finely rendered model in the system. And just like that, it hits me— This is a gender-bender plot, isn’t it!?