Falling in love with sister-in-law

Hao Lu proposed to his wife a trip to reward his wife for her hard work, but the trip was canceled for some reason. The frustrated wife actually secretly ate some fresh meat behind Hao Lu's back. After Hao Lu learned about his wife's affair, he felt exhausted both mentally and physically, so he took a day off to rest at home. My sister-in-law, who was worried about Hao Lu, came to visit and was ready to "comfort" him...