What Kind of Son-In-Law from an Immortal Family Calls Me the Holy Son!

Traveling through the world of cultivating immortals, Yu Changan became the son-in-law of an immortal clan. I thought I could live a nurturing life with a wife and children on the hot bed, but I was rejected by my goddess wife because of my low strength, and I wasn't even allowed to touch him. Yu Changan dared to be angry but dared not speak out, so he activated the intelligence system to develop secretly. With the help of intelligence, he obtained rare treasures, built his power, and found beauties... Others only regarded him as an idle good-for-nothing uncle, but little did they know that Yu Changan had already left them behind and truly had the capital to gain a foothold in this world.