Influencer/YouTuber recommendation
Multiple reviewers cite Korean and Japanese beauty YouTubers or creators (e.g., a named collaboration and specific 'すぷすぷちゃん' mention) as the reason for purchase.
Repeat brand trust
Many buyers say they already use other Fillimilli brush lines and bought this 'Pro' set because the brand consistently delivers soft, reliable brushes.
All-in-one convenience for eye makeup
Reviewers repeatedly note it contains 'everything needed' for a complete eye look, reducing the need to buy brushes separately.
Travel-friendly case
The included slim case with mirror is frequently mentioned as a key purchase driver for people wanting a portable brush set.
Promotions and bundling
Several reviews mention buying due to sales, coupons, Black Friday discounts, or inclusion in an Olive Young beauty box.