Terrarium Adventure

I'm a zillionaire in a gacha game!
Obsessed with the clicker game Infinite Diamonds for over a year, Jae-Hee finally reaches the ultimate in-game achievement — only to suddenly find herself in the RPG gacha game Terrarium Adventure! Why was she pulled into the game, and how can she get out? For now, she has no choice but to explore!

(Source: Manta, edited)