I thought of few ideas for protecting waifus from NTR. How about Waifu Badge Protection? Waifus that are in your waifu badge cannot be NTR'd by someone who does not have same waifus as me in badge or cannot be NTR'd because of other reasons that will protect them and my number 1 waifu. How about quiz that will keep her from being claimed if you answer questions that would make her fall in love with me,depending on her personality and my love for her? How about anything that will stop claiming my waifus from Waifu Badge,where is also my number 1 waifu too. I am fine with other waifus being claimed,but my top 4 from my Waifu Badge? Jeez,point of having waifu is love her and keep her by your side forever,not use them as tools for NTR Wars and making harems!
You think something like that would hurt, after all I've been through?