My Overpowered Senior Brother Is Too Modest

Lu Ming transmigrated to the cultivation world. Due to his handsome appearance, he was adopted by the immortal Su Hanyi who traveled the Dao Realm and became the first disciple of the Yanxia Peak at Tianyan Sect. However, he is an ordinary mortal with no combat skills. His only cheat is an invincible domain in his courtyard that grows one centimeter every day. He originally planned to lie flat until his master returned, but the sect leader gave him a mediocre junior sister named Lin Qingyao. Yet, feeding her a chicken leg causes the domain to grow another centimeter! Giving her a hint of her cultivation technique makes it expand by a meter! Lu Ming realized that raising his junior sister is actually the fastest path to leveling up. From then on, he transformed into the strongest caretaker. Roasted chicken legs are his spiritual pills for enlightenment, and his recliner is his cultivation artifact.