If the person who wishes enjoys the nightmare, he or she will produce Black Notes, which Baku promptly eats to store them.

Because of this, the King of Mari Land appointed My Melody once again to capture both fugitives and prevent the Spirit of Dark Power from resurrecting for the second time.

But then a new student named Jun Hiiragi arrived from England at Uta's school, and she notices he was Keiichi's little brother.

Baku and Kuromi also arrived in the human world and learned that if they collected 8 black notes (do, re, mi, fa, sol, la, si, high do) that coincide with the Solfège scale, their wishes will come true and decided to wreak havoc in the city once more.

Unbeknownst to everyone, the spirit again will make its rise as he intends to plunge both Earth and Mari Land into eternal darkness.

As the king takes her to Mari Land, she meets My Melody for the first time and becomes friends with her as they both watch the shooting stars.

Set three years after the end of Sukkiri, Uta Yumeno, now a sophomore in high school, is living a good life in the human world with her family and friends.

The denizens of Mari Land were somewhat considered "Living Dolls", in reference to the tomboy girl Mana's phobia of cute things.

For instance, Kuromi, who appeared in the first season of Onegai My Melody, became an official character of the Sanrio parent franchise in 2005.

The music for all four seasons of the anime was composed by Cher Watanabe, whose other notable works include the soundtracks of Kinnikuman Nisei, The Prince of Tennis, Sensual Phrase, Idol Time PriPara, Maken-ki!

'Please♪My Melody High School~', serves as a continuation of the franchise and was released by PHP Interface under the Smash Bunko label on March 8, 2013.

[9] Although it only aired in Japan, Taiwan, Hong Kong, South Korea, Italy, Spain, Portugal, Thailand, and the Philippines, Onegai My Melody was positively received among fans of Sanrio's character franchises, and has garnered a cult following.