So my misfortune turned into fortune. I was just grinding for the last 15 gold event exchange items that I needed for my last SSR weapon. I was watching youtube videos at the same time while grinding and when I looked up from the video, I saw a platinum chest. I was so sure it was going to be an eidolon and I got the last SSR weapon I needed. ^_^ Now I can the 45 gold event exchange items on grimoires. RNG, we have a weird relationship but I love you sometimes man, thanks.