I’ll Take the World Championship as My Bride Price

Su Jiran was tricked out of his money and dumped by his "ex-boyfriend, Jiang Lin." Four years later, he received a dividend payment of two million and realized it had all been a misunderstanding. He wanted to give true love one more try, only to discover his ex was the heir to the richest family in the country. He spent six years working hard just to stand in front of his ex and ask, "Do you still love me?" Instead, his ex told him, "I'm getting engaged." He thought he'd shut his heart off for good, but then along came the younger Jiang Ye, with his lovely voice, gentle and thoughtful nature, and, most importantly, the same values. His good looks were almost the least of his charms. Just keep working hard, and let fate take care of the rest!

Can you guess how Jiang Lin and Jiang Ye are related?