Shizuku making yet another cheating+seduction attempt marks the start of another... nothingburger cycle.
I wonder how many narrative loops of this have we gone through since chapter 1. This isn't even anything we haven't seen before, it's just the location and their clothes that's changed. In the previous cycles Umimi was introduced to shake things up, and after that in a following cycle Yako came in to fill that role. Don't tell me we're getting a girl #4 for Riku's totally-not-a-harem for this arc.
I'm just annoyed that Riku memoryholed that one time he told Shizuku to go pound sand when she wouldn't tell him for the nth time, why she was trying to move heaven and earth to cheat on Takt with him. It's like we went back in time here.