Thank you so much for your kind words, @Arissa ! 
Regarding the Pompompurin kit, it is an official Rolife kit but it seems to be China-exclusive just like the Super Creator Hello Kitty Supermarket and Super Creator Cinnamoroll Cafe. The kit is called Pompompurin Leisurely Breakfast. It looks like this.in the promotional photos:
I also posted it previously here: [Heartwarming] Slow and Cozy Early Morning Breakfast with Pompompurin 🍮🐕🐾