Yes, RMB skip would have been added to Chara Dungeon if I didn’t mess up my todo list.
Maybe Chika in the infirmary, it’s a committed scene that require the infirmary key. If all the scenes end up being unlocked, it’s fine for me.
No, wait I just remembered!! There is a small probability that the selected scene to play is a scene you’ve already seen even if there are still scenes you haven’t seen in the pool. Since you’ve seen the scene, it doesn’t have a “(!)”. I think that given enough time, you would have seen those Committed scenes even without leveling up to Devoted.