Well now he feels called out, even if Cao Pi is sincere. It's just a bit of drinking, it's not like his birthday actually matters much here. He'd have spent it with Law but Law is asleep; he'll have to go check on Mary periodically but having a birthday party with a kid isn't really what he wants; Will is... sulking, probably, after accidentally burying a knife in him just a few days before.

He takes a moment to focus on the glass and how his hand should grasp it rather than knocking it over, then lifts it in the air before downing another drink. "If it's not better then maybe it'll be the last. World eaters'll find us eventually," he grumbles. The current situation just doesn't have him full of optimism.