Kami nomi zo Shiru Sekai II EP10 - FLAG 10.0 School☆Wars

Keima has an idea to quickly grow the relationship between him and Jun by making her hate him and turning those feelings into love. But the plan backfires as it only cause Jun to be more concerned about him. After getting him alone in class, Jun tell Keima that she believes he is lonely and plays games as a form of escape but he shoots her down as she has no clue what he is and that she shouldn't judge him by her own standards, which leaves Jun shocked. With no other choice and a change of plans, Keima asks Miss Nikaidō for more information about Jun which she agree in exchange for helping her in her school work. Meanwhile, Jun still affected by Keima words, decides to help his class in their schoolwork after Mr Kodama insult them as failures. But when the students tell her that they don't have the zeal to improve themselves, Jun in anger, inadvertently scolds them and quickly leaves. After finishing his part of the deal, Nikaidō finally reveals to Keima that she and Jun were members of the highschool's girls basketball team before it disbanded over an incident in the past. With this new information, Keima now knows what to do.