Unsuspecting inhabitants of the planet Earth are going about their business, enjoying a bright and particularly beautiful sunny day, when a young Japanese boy spots a shiny object falling from the sky... Has an alien invasion finally begun? Elsewhere in Japan, Keroro, frog sergeant and leader of the Space Invasion Army Special Tactics Platoon of the 58th Planet in the Gamma Planetary System, has discovered the perfect hideout. He infiltrates the home of the Hinata family in an attempt to establish a headquarters that he and his troops could use to prepare for world domination... but earthlings Fuyuki and Natsumi Hinata are too much for him to handle! Natsumi instinctively calls them out of hiding, leaving the hapless sergeant no option but to reveal his secret identity. The two siblings soon welcome the sergeant to their home, all thanks to Fuyuki’s generos—err... curiosity. The Sergeant has successfully infiltrated his first target area! Or has he? Join Keroro Gunsou in his dastardly attempt to take over the world!

Being the daughter of a modeling agency owner, Chiyuki Fujito aspires to represent her father's agency in the prestigious Paris Fashion Week, shining under the spotlight as a runway model. However, although she is equipped with great looks and talent, she unfortunately lacks a key element in becoming a successful model—height. Stuck at 158 cm even after entering high school, her childhood dream seems out of reach. Meanwhile, Ikuto Tsumura is a high school student with a knack in designing clothes; however, without the resources to pursue the necessary education, his ambition of becoming a fashion designer remains a mere dream. But as fate brings Chiyuki and Ikuto together, the dim hopes within their hearts are ignited once again. Together, the two promise to rebel against convention and carve out their own paths in the fashion world. [Written by MAL Rewrite]

Just the words "I love you," and everything changes—such is the nature of the bittersweet trials of high school romance. Tenma Tsukamoto, a second year, is on a quest to confess her feelings to the boy she likes. Kenji Harima, a delinquent with a sizable reputation, is in a similar situation, as he cannot properly convey his feelings to the one he loves. Between school, friends, rivalries, and hobbies, these two will find that high school romance is no walk in the park, especially as misunderstandings further complicate their plight. School Rumble is a high-octane romantic comedy full of relatable situations, as Tenma and Kenji both try to win the hearts of those they desire. [Written by MAL Rewrite]

Continuing right where season 1 left off: Harima still likes Tenma but still runs into obstacles everytime he tries to confess his love to her. To complicate the situation, Class 2-D challenges class 2-C once again and there's a rumor floating around that Harima and Yakumo are dating as the school prepares for the cultural festival. (Source: ANN)