Douluo Continent: I, the world's greatest immortal master, have taken Ning Rongrong as my disci

Su Ran transmigrated to the Douluo Continent, her appearance was stunning, and her beauty was unparalleled!
But he always kept a low profile and cultivated diligently, and even broke through to the Soul Saint level. Unexpectedly, he awakened the Apprentice Recruitment System at this time, and was directly rewarded with opening a Peach Blossom Academy opposite Shrek Academy. He started by taking Ning Rongrong as his apprentice, teaching her to add points to defense and practice the Seven Treasures Golden Bell Shield technique, but was ridiculed by Shrek Academy.
Fortunately, the rewards for taking on apprentices are plentiful, including soul bones, cultivation techniques, weapons, rare herbs and plants, mounts, and even the ability to increase the age of soul rings, share and sublimate the apprentice's martial soul and soul skills, and sweep through everything.
But unexpectedly, Su Ran's path of taking on apprentices went further and further astray. The female students became unmotivated and spent their days thinking about how to woo their teacher!
Zhu Zhuqing: "Thank you, Master, for helping me break free from my family's fate. I have no way to repay you except by offering myself to you!"
Ning Rongrong: "In a Soul Master duel, go after the support first? Then let me ask you, how do you break through the Golden Bell Shield that my teacher taught me?"
Qian Renxue: "Answer me, is a Black Angel an angel? The teacher said that becoming evil makes you three times stronger, how do you explain that?"
Shui Bing'er: "The frost-covered ice melted under the teacher's hand!"
Fire Dance: "Teacher, my Mars is evolving into the sun! I need you to help me cool off!"
Tang San: "Why won't you accept me? This is discrimination, blatant discrimination!"
Years later, seeing that Peach Blossom Sect had become the strongest sect on the continent, with countless Title Douluo disciples chasing after him wanting to date him, Su Ran felt quite helpless:
I just wanted to take on a disciple, but they all want to have a master-disciple relationship with me? What should I do?