Who Sucks Their Cute Junior Brother's Paws into Their Lungs?

【Two male leads + xuanhuan + transmigrate into a book + silly beauty + sweet romance, both devoted to each other + long-planned pursuit + yandere, unhinged love interest + cat-like bottom】 【Delicate, sickly, pretty, silly cat-like bottom x aloof, otherworldly senior disciple who is actually a perverted, unhinged love interest】 Lu Zhi transmigrates into a book as a useless beauty who is sickly and out of breath after just a few steps. His only task is to be a background character and watch the original protagonist, Xiao Teng, get humiliated. To stay alive, he promptly clings to the biggest support in the whole story: his senior disciple, Shen Yan, who is aloof, otherworldly, and seemingly untouched by worldly concerns. Lu Zhi thinks he has latched onto a beacon of righteousness. Who could have guessed that this guy is seriously not right in the head? One day, Lu Zhi is only half an hour late returning to the courtyard, and Shen Yan corners him beneath an osmanthus tree. Lu Zhi immediately admits defeat. “Bro, I’m sorry. I’ll do it again next time.” But Shen Yan says nothing. He simply lowers his eyes and grabs Lu Zhi’s wrist with hands colder than a deep pool. Then those icy fingertips seem to have eyes of their own, sliding inch by inch up the tender skin along the inside of his forearm. Lu Zhi goes rigid on the spot. That finger stops precisely on the softest, most tender spot on the inside of his elbow. Lu Zhi sucks in a sharp breath. That’s where he’s most ticklish! How does Shen Yan know that? The offending finger starts circling and rubbing, neither too gently nor too hard. Lu Zhi’s whole body goes numb, his knees nearly buckle, and the corners of his eyes turn red in an instant. Ugh... this is torture! A stifled whimper escapes Lu Zhi’s throat. He looks ready to burst into tears. Only then does Shen Yan seem satisfied. He pulls Lu Zhi into his arms and asks in his cool, pleasant voice, right against his ear, “Are you going to run away again?”