Can someone give a little bit on context here? Not very familiar with non EN events.
I'm pretty sure this is one of the final scenes from the "Deep Dive" event. You can look up online and there should be summaries. I know someone also created a google docs story summary of the entire GFL series (including OP Bakery Girl) but I haven't touched it since I'm trying to reduce how much I get spoiled.
EDIT: Someone asked me so here are the sources. My original link is dead but I also saved these links which I think have similar information. I'm not reading to check since I want to avoid spoiling myself (which I did when I initially found these links but managed to not remember the exact details since at the time I had not played and did not put character names to faces yet) Wiki Moe Grill Google Docs Random Forum Discussion