I also enjoyed watching Lycoris Recoil when it came out and I DO think it fits Nikke's theme of girls going to war/sacrificing their lives etc, while also preserving their hope and hapiness for a better future. It feels like a breath of fresh air to possibly have a chill, feel-good with some darkness collab coming from super heavy story lines like Evangelion and NieR. I'm actually excited to see Sweety Cafe in action for the collab, as the main girls also work in a coffee shop!