It might be that the high school setting in the fanfiction is too clichéd for her. Annabeth is a complex character and perhaps she feels that the typical high school drama scenarios in the fanfiction don't do justice to their story. For example, if it reduces their epic adventures to simple high school rivalries, she would likely hate it.
One possible reason could be that the fanfiction misrepresents their characters. Maybe it portrays Percy in a way that Annabeth doesn't like or goes against the essence of their relationship as she sees it.
Another reason could be that the fanfiction doesn't respect the growth and development of their relationship. Annabeth and Percy have a deep, evolving bond. If the fanfiction simplifies it or takes it in a direction that doesn't align with how their relationship should progress, it would make her dislike it.
Chapter 219, "Xia City, Brothers' Tacit Understanding 2", is the clearest early answer because it pushes Cold Beasts into a new phase or setting. A useful checkpoint is the way the scene starts with Yue Feng looked at the tunnel, pondering any possible improvements. and follows through with But just now under the city gate, he saw at least sixty or seventy,....
Chapter 190, "Xia Li, 4 Articles, Someone is Coming", is the clearest early answer because it turns Xianyang Level's situation into a concrete plot event. The chapter gives readers a real answer by opening on Is this Reshaping Skin stage really that magical, that one must... and ending on He couldn't explain this situation either.. In story terms, the chapter closes with Below, Yuwen Dao, Yue Feng, and the others were stirred awake by Xia Hong's voice.
Chapter 306, "Rebel Collaborators, Chaos and Opportunism, Long Mountain Changes Hands", is the clearest early answer because it turns Xia Army's situation into a concrete plot event. It opens with Go notify the leader, have him quickly bring the main forces back to... and closes on His initial thought was that the trials Li Hu suffered would instead....
Chapter 257, "Building a Straight Road, the Beast Meat Issue", is the clearest early answer because it turns Mirror Valley's situation into a concrete plot event. A useful checkpoint is the way the scene starts with The dividing line of a day in the Ice Abyss is determined by dawn. and follows through with If they breakthrough to the Earth-digging Realm, they can even....
Chapter 247, "Immortal Wu Xiong, Surrender", is the clearest early answer because it turns Li Xuanyan's situation into a concrete plot event. The setup is it hurts, help me, help me!" "Ahhhh...… save me!" "Wuwuwu, save me!"..., but the pressure keeps building through Jiejiejie......" From the four wooden houses engulfed in blue flames....
Chapter 260, "Medicine Workshop Upgrade, Population Surge, and Resource Easing", is the clearest early answer because the rescue effort creates visible on-page results. The setup is From April 29 to May 9, the massive population migration finally..., but the pressure keeps building through By the morning of May 10, when Xia Hong once again checked the system....
Chapter 299, "Troops at the Gates, Searching, Completely at a Loss (2)", is the clearest early answer because it turns Longyou Army's situation into a concrete plot event. The setup is Li Xuanling heard this and immediately frowned., but the pressure keeps building through The harsh environment of the Ice Abyss has already determined that....
Chapter 262, "Garrison Candidates, Martial Arts Enthusiasm, and the Eve of a Breakthrough Tide", is the clearest early answer because Thousand Forged Weapon finally turns buildup into a real advancement. A useful checkpoint is the way the scene starts with The deeper purpose, of course, is for next month's martial arts... and follows through with After thinking for a moment, he took a few things with him and....
Chapter 281, "Yang Li's Repression and Resentment (Part 2)", is the clearest early answer because it turns Beast Blood's situation into a concrete plot event. The chapter gives readers a real answer by opening on Hearing the chill in Yang Zhong's voice, Yang Yue shivered slightly,... and ending on Li Hu's right arm was wrapped with cloth strips, stained with quite a.... In story terms, the chapter closes with Depositing them was such, using them was even more troublesome;
Chapter 284, "Astonishing Training Results, the Peepers", is the clearest early answer because it turns Cold Beasts's situation into a concrete plot event. The chapter turns that into something concrete by moving from Second Year of Great Xia, June 25 Snowy night, west of Wushuang,... to But at this moment, the situation seemed peculiar..