Kamijou Touma, he was born unlucky, but he was very satisfied because he had to think about what to eat.
Saiki Kusuo, he was born with everything, but he was not satisfied.
Kamijou Touma: "Unfortunately makes me poor, poor makes me strong orz"
Saiki Kusuo: "If you are unlucky, then why did you meet me? :)"
Kamijou Touma probably used up all his luck in life when he met Saiki Kusuo.