Maple Globe Event

 According to Ghiblee on the MS Discord, Hidden Missions award the following decorations:

Globe Chair: Cozy Bean Bag Cushion
Globe Mini Figure 1: Lil Neinheart
Globe Pose: Sit
Globe Pose: Jump
Globe Music: Sanctuary

So we're missing Globe Pose: Sit, Globe Pose: Jump, and Globe Music: Sanctuary. So either the last mission gives all three, or there's two more missions that are unknown to me. I think Globe Music: Sanctuary is a good candidate for '[Maple Globe] To the Persistent', since Asylum is blocked off, or 'Globe Pose: Jump', because you know, jump quests and persistence.

She also basically came out and said the Grand Athenaeum BGMs were from Chapters 1 to 5 of Grand Athenaeum, that Lil Orchid is from Black Heaven, and that the Lil Heroes are from Heroes of Maple, but also that the drop rate is... not great.