Tamagotchi! - Season 6

At that time, the Tama-friends discovered Tama Hearts, magical objects formed from strong bonds of friendship and love. Princess Tamako encouraged them to collect any hearts they come across, feeling that they must be destined to do something with them. Mametchi created the Tama Profys, devices that could store the Tama-Hearts shortly after they were uncovered, and gave them to Lovelitchi and Melodytchi. Every time a Tama-Heart was found, Lovelitchi and Melodytchi would take out their Tama Profy and store the Tama-Heart inside. At one time around that time, a mysterious Tamagotchi named Kizunatchi got out of the devices and offered to help with the search.

Not long after, Tomomi leaves to return to the Earth and a new Tamagotchi girl with a massive crush on Mametchi, Himespetchi, arrives and agrees to help with the search after befriending everyone.