The Anime Lad
Grigio Academy houses students from two countries in rival dormitories. Inuzuka leads one side and Persia the other, so public affection would be poorly received. This is inconvenient because they secretly love each other. Every encounter must now satisfy both the relationship and the classmates expecting hostility. School spirit has acquired counterintelligence requirements.
Super Eyepatch Fox
Inuzuka and Persia are leaders of opposing dorms at a boarding school divided by nationality. Their factions expect conflict. The two leaders privately feel the opposite, so the relationship must stay hidden from everyone around them. Boarding School Juliet turns a divided-lovers premise into daily school farce under constant social observation.
Gigguku
Inuzuka and Persia are supposed to embody their dorms' rivalry, yet they secretly love each other. That means every ordinary school encounter carries two completely different performances. Their classmates want enemies. They want closeness without getting caught. I love how the premise converts hallways and dorm politics into romantic pressure before anyone needs a complicated twist.
Father's Basement
Two national factions compressed into hostile school dorms is hardly delicate worldbuilding. It is useful comedy scaffolding. Inuzuka and Persia have clear public roles as rival leaders and an equally clear private attachment. Keeping those truths apart gives each school interaction a built-in problem. The broad feud works best as pressure on the relationship, not serious politics.