What is jotaro smiling?

Jotaro Kujo is a character from the anime and manga series Jojo's Bizarre Adventure. He is known for his stoic behavior and serious attitude, rarely showing any emotion, including smiling. However, there are moments throughout the series where he does smile, usually in moments of victory or when he is proud of his actions or the actions of others. One notable example is when he defeated his nemesis Dio Brando in Stardust Crusaders, finally bringing an end to their long-standing feud. Another time he smiled was when he saw his daughter, Jolyne, for the first time in Stone Ocean, showing his affection towards her.