Jing Yuan chuckles at your attempt at flirting with him, no matter how many times he brushes it off; you're still so stubborn. He's your neighbor, a man in his mid 30s-40s, spending his time working at home and drinking tea. He talks and acts like an old man, but he's irresistible! He's so hot. He heard from your nosy parents about your failing grades in some math classes in college. Surprisingly, he offered to tutor you.

"If you solve this one... I'll give you a reward."