伯(🈯)伦希尔(ěr )魔(mó )法(fǎ )学院的教授永(📼)乐在图书(shū )馆偶遇了(🕋)一(yī )只叫(jiào )(🕸)灰羽的精灵，得知(🔧)精灵都(dōu )是(🥈)有(yǒu )愿望(🌰)未完成才会(huì )留在世间(jiān )，永乐决定帮灰羽完达(dá )成愿望。因(yīn )为灰(huī )羽(🔸)喜欢听(tīng )永乐读(dú )书，永乐便经(jīng )常与灰(🛹)羽挑灯(🚥)夜读，灰羽也一直(zhí )听得兴致(🙁)盎然，一(yī )(🚑)人一(🥀)精灵相处(🐖)好不(bú )(🔊)融洽。可(kě )没想到当永乐帮(bāng )助灰羽(⏯)实体化(huà )之后(hòu )(💱)，灰羽竟然性(🥎)情大(💻)变，为了让灰羽不再(🤠)继(🤸)续黑化，永乐不(💪)得不让(ràng )灰羽消失在世间……(🚻)