Billy the Kid is one of the servants I leveled up from Gilfest lottery items as he was a lower priority for me previously. I thought his character was pretty cool in E Pluribus Unum and his other appearances so at least he was on my list to raise. I just did and finished his interlude, and I must say, that was cool! I don’t want to give away any spoilers but it’s definitely worth taking the time to read the lines. There are quite a few stages (7 I think) so you’ll need to save up some AP and apples if you want to do it in one go.
Someone on my Friend’s list has a lvl 90 Billy that I’ve used a few times so glad to see someone giving Billy some love!