Aventurine Size M (Honkai: Star Rail)

Aventurine (アベンチュリン) is a playable Imaginary character in Honkai: Star Rail.
 
He is a senior manager in the IPC Strategic Investment Department and one of the Ten Stonehearts, bearing the Cornerstone known as the "Aventurine of Stratagems." Charming, confident, and daring, Aventurine is known for his constant smile, which makes it difficult for others to discern his true feelings (honkai-star-rail.fandom).
 
Aventurine views life as a high-stakes, high-return investment and approaches every gamble with masterful ease. Having won his current position by wagering against fate itself, he never shies away from taking risks, believing that fortune always favors those willing to bet everything.