Please Bring Out the Sword, Master

In the 21st century, Ye Changan, a social worker, came to the fantasy world. Having read many fantasy novels, he thought he could thrive here! But who knows... System? Grandpa? Ring? Miracle doctor? Son-in-law? Dragon King? Mars? Very good! He has nothing and is nothing. The most important thing is, both parents died at the beginning? ! ! Depend on! What is this? Fortunately, she was accepted by the beautiful master Ye Qing, and eventually became her first disciple. And so... Ye Changan's life of being a soft-boiler began. Of course, some people are dissatisfied and have no choice, Ye Changan said. "I, Ye Changan, have had soft teeth since I was a child and have not been able to eat hard food." … One hundred and fifty years later… He faced Leng Qingning, his first disciple, with expectant eyes and a look of helplessness on his face. "I'm sorry, Master, I don't have anything for you..." [Ding! [Congratulations on being favored by the all-round immortal cultivation starting invincible system! Yeah Is the system coming? ! [The host relationship network is as follows] After reading the relationship network, Ye Changan was stunned on the spot. Is my first disciple an empress? The second apprentice is the empress? Is the third disciple also the empress? The little pet I randomly picked up and raised is a nine-tailed white fox? ! And she's still an empress? ! Am I... Into the Empress's den? ? ? The world is collapsing and billions of living beings are in danger! Wait! Please listen to my disciple. "Master, please use your sword!"