Taking place after the events that occurred in Hayate no Gotoku! Can't Take My Eyes off You. Hayate, Nagi and Maria return to their daily lives at the Sanzenin Mansion and the Violet Mansion. (Source: Hayate no Gotoku! Wikia)

Taking place one month after the events that occurred in the movie Heaven is a Place on Earth. Living at the Sanzenin Mansion once again, Nagi returns to her old ways of life, until she receives word from American authorities informing her that she has a week to pick up her late father's belongings that was indefinitely delayed due to various circumstances. After receiving news of her father whom she doesn't remember, Nagi then meets a mysterious girl (with a hidden agenda) claiming to be Nagi's little sister. The series tells a new story that is original to the anime and not directly based on the manga. The main author of the original series Kenjiro Hata personally created the original concept for the story of this anime. (Source: Hayate no Gotoku! Wikia)

Young flower enthusiast Tsubomi Hanasaki is often modest and quiet. But with her family moving to a new town, she aims to reinvent her image at her new school as someone more confident and outgoing. On moving day, she dreams of a mysterious tree in the sky guarded by a warrior named "Cure Moonlight." Tsubomi quickly learns that this was no ordinary dream when she encounters two mysterious fairies—Chypre and Coffret—who are being hunted down by a strange woman. When the woman summons a giant monster to attack the city, Tsubomi finds herself transforming into a warrior to fight the enemy! Taking on the alias "Cure Blossom," Tsubomi learns that the woman is part of a villainous group that aims to turn the world into a lifeless desert, with her new duty being to stop it from happening. As Tsubomi continues to battle more monsters and uncover the secrets behind Cure Moonlight, will she find the confidence needed to overcome her timid nature? [Written by MAL Rewrite]

For some people, high school represents the opportunity for a fresh start. You can take new classes and make new friends. For Souichiro Nagi and Bob Makihara, though, high school means something different: the chance to become the top fighters in the entire student body! Too bad Toudou Academy is the hardest possible place to realize their dreams. Their new high school is no ordinary academic institution. Rather than concentrating on classic subjects like math and science, Toudou Academy was created for the sole purpose of reviving the martial arts in Japan! As a result, Souichiro's aspirations to become top dog are cut short when he runs afoul of Masataka Takayanagi and Maya Natsume. The two upperclassmen easily stop the freshmen duo's rampage across school, but rather than serving as a deterrent, it only stokes their competitive fire. What kind of monstrous fighters attend Toudou Academy? Are there any stronger than Masataka and Maya? And why in the world is Maya's younger sister stalking Souichiro? Learn the answers to these questions and more in Tenjou Tenge!