hii I think day 3 will be out in a short time, neko bueno shares a lot of his work on his patreon <3 there is a comic about Harlequin on his tumblr and many tweets from him
I think the fandom mainly like the game because it's very niche : it's a circus themed game with a mix of rivalty between harlequin and pierrot and a very interesting lore, also all the characters seems to be their own self instead of a background character, keep up the good work neko :)
I know you're excited for the next update but it's an indie game, so Neko is working as his own pace, don't be pressed about the next update it will come soon, Neko published a sneak peek on his Tumblr if you wanna check it.
the creator of the game added new sprites and background for day 3, there is also a coffee shop scene with pierrot looking behind the coffee shop windows, Im so excited (source : his official tumblr most recent post)