Penniless Leo Griffin, scorned for Chloe Quinn, awakened the 'Ultimate Cash-Back System' on their marriage day. Spending on his wife gives tenfold returns. He became the Ultimate Wife-Pamperer, splurging on rings, cars, villas, tech company. Facing enemies, he launched 'Pangu' new energy vehicle. When an enemy bombed their wedding, Leo used 'Time Reversal' to protect her. He vows to give her wealth and security.