This is Spring Equinox at Orilium Academy for 2024, it's part of Magical Readathon by G. Book Roast on youtube. Here's the announcement for this edition, here's the playlist for Magical Readathon where you will find first announcement of Magical Readathon in 2021, all of the announcements since, and a guide on what happened so far (it's a little outdated but will still help) and how to catch up.
Here's Gdrive.
This will be the general challenge for all careers, so all prompts will be bonus ones. At the very end there will be a regular prompt where you have to add your last book to mark the challenge as fulfilled.