Everyone in the Sect Is the Master's Secret Identity

X transmigrates into a harem danmei novel about a master and his younger disciple, becoming the cannon-fodder top who is the disciple of a beautiful, aloof master. The eldest senior brother is refined and gentle, managing the sect with ease. He's a caring, nurturing mother hen. The martial uncle is proud and stern, a domineering CEO who terrifies every disciple in the immortal sect. The grandmaster is mysterious and inscrutable, the greatest sword cultivator in the world. He is admired by countless people, yet wants nothing to do with worldly affairs. The sect also has a sworn enemy, a wicked lunatic who makes trouble wherever he goes. Both the righteous and demonic factions go out of their way to avoid him. But none of them is the real love interest! In the end, the one who wins the beautiful master is the junior disciple dumped on X to raise. Junior disciple: "I-I want senior brother cuddles." (clings to his leg with a loud smack) X: ??? One day, X suddenly discovers... the real love interest and their aloof master, the flower atop the mountain, are actually the same person. X frowns, realizing things aren't so simple. He starts peeling away the secret identities one by one, and eventually discovers... The martial uncle, grandmaster, and eldest senior brother are all the master in disguise, too. X: "What about the Demon Lord?" Master: "That's not me." X: Master: "He's merely a delusion of mine." X: ... #Our sect only has the two of us# #I think the entire book is just the master's secret identities# #You seem like a roleplay account to me# Note: The love interest isn't a split personality or a fragment, but he is probably a drama queen. Theme: To be added.