Beautiful product for a lovely cause! I don't even own Lighthearted yet (I will before long) but I had to buy this and I'm glad I did. I've never seen an RPG adventure like it. As someone who struggles with depression, I deeply appreciate the creator's willingness to handle such weighty subjects. Thank you!
My one bit of feedback is that Millie is referred to in the text as a she, but has they/them pronouns listed. I would recommend choosing one or the other, personally. Not a big problem though. It's easy for a GM to choose.