Rengoku, Tengen, Giyuu, Sanemi, Muichiro, Mitsuri, Obanai, Shinobu, Gyomei, Muzan, Akaza, Douma, Kokoushibo, Daki, Nakime, and Gyutaro have been brought to an empty room with absolutely no way out and a note, the note says: You are going to meet someone from a different universe, please, no fighting, as soon as everything is done, your memories of this encounter will be erased and you will be put back in your timeline. (((as you appear, state your name, age, universe, and species)))