MTL - Card Room - ~ Chapter 309:

“In a land far to the east, there exists a strange store that has rejected a three Michelin star rating multiple times.

Arnold never thought his gaming skills would land him in a romance novel—as a doomed side character, no less. To survive, he hijacks the heroine's “system,” bending the story to his will. But when he dodges a deadly duel, he catches the eye of the heroine, Lara, his own step sister—and her love is a dangerous game. Arnold must outwit the plot and his step sister who's not afraid to kill for love. In this LitRPG romance gone wrong, survival isn't just about beating the system—it's about escaping the heart of a yandere.

When a person dies, they either die light as a feather (aka unimportant) or heavy as Mt. Tai (aka very important).