There's definitely more romance compared to 67% inertia (I only just skimmed it to chapter 50~ to check and didn't see much there) but the romance Photo Club has is a minor part of the story, it's more about funny moments and university life
Unfortunately I can't promise 300 chapters but I can promise 28! I hope you continue to enjoy and have fun! Planning on another chapter either in the morning if I can pull it off before work or let it stew for another day and post it the morning after!