Nandetchi (なんでっち Nandetchi) is a male adult-stage Tamagotchi who debuted in the Tamagotchi! Yume Kira Dream anime series. On virtual pets, he debuted on the Tamagotchi P's in Japan, and on the Tamagotchi Friends internationally.
Name Origin[]
Nandetchi's name comes from the Japanese word nande (なんで), meaning "why?". This likely refers to his tendency to ask questions, including "Why?", due to his curiosity.
Appearance[]
Nandetchi is blue, and has a little point on his head, similar to Gozarutchi's. He wears blue overalls, and glasses.
Personality[]
Nandetchi is a very curious and inquisitive Tamagotchi, and asks lots of questions, most often asking "Why?". He ends sentences with "detchi", which is part of his name.
| Official profiles |
|---|
| "There's so much I don't understand... I really respect how much Righttchi knows." - Tamagotchi Plaza Guest List (US, 2025) |
On Virtual Pets[]
Tamagotchi P's[]
Nandetchi is a male adult who evolves from Maimaitchi with 3-7 Care Mistakes and the Intelligence trait.
Tamagotchi Friends[]
Nandetchi is an NPC who can appear when visiting the Park.
Tamagotchi 4U/4U+[]
Nandetchi is a downloadable adult who can evolve from any male child when using the Lab Coat item 3+ times.
In the Anime[]
Tamagotchi! Yume Kira Dream[]
Nandetchi goes to Dream School, and is in Robot Class, with Mametchi, Himespetchi and Hoshigirltchi. He admires his classmate Righttchi. He told Mametchi that Righttchi was the greatest teacher on the planet, even though he is just a student. He calls him "Righttchi-San". He's also a member of Rainboys, where he plays bass for the band.
Nandetchi is currently the only Tamagotchi who knows about Yumemitchi's and Kiraritchi's transformations with the Yume Kira Bags. When he told everyone else, they thought it was a joke and Nandetchi was desperate to make everyone believe him. By using various costumes, he kept pretending to be a different person in need of help so he could take a photo of Yumemitchi and Kiraritchi using their Yume Kira Bags. In the end, however, he decided to keep the girls' secret safe and tore up the photos.
Nandetchi is also Pianitchi's childhood friend, and the two had buried a time capsule together before Pianitchi moved to Melody Land.
GO-GO Tamagotchi![]
In "Look Detchi~! Secret of the Knock Tap", he discovers Miraitchi and Clulutchi's Knock Tap. Not knowing what it does, he accidentally sends himself into the prehistoric past. At the end of the episode, he manages to return to the present, but now as a withered old Hobo. However, it is still unknown how he reverted back to his younger self in the next episode.
In Games[]
Tamagotchi no Doki Doki Dream Omisetchi[]
Nandetchi is a playable character who runs the Police Station. He also appears as a customer in the shops.
Tamagotchi Plaza[]
Nandetchi is a potential customer at the Dentist, Bicycle Shop and Afternoon Tea Shop if the shop's rank is Gotchi or above. He also frequents the Glasses Galette Shop.
Other Forms[]
Kerokero Nandeppi[]
Kerokero Nandeppi is a costume transformation exclusive to the Sanrio Characters Mix Deco Pierce. Nandetchi is dressed as the Sanrio character Keroppi, with green skin, big eyes and a leaf umbrella.
Gallery[]
Modern Artwork[]
Anime Artwork[]
Anime[]

Click here to view the gallery.
Games[]
Trading Cards[]
Sprites[]
Trivia[]
- Unlike Butterflytchi and Hanafuwatchi, Nandetchi did not reappear on the Tamagotchi Friends: Dream Town Digital Friend as a raisable character. Because of the lack of a Park to meet NPCs, Nandetchi therefore does not make an appearance at all on the Dream Town version.
- This distinction is shared with Amiamitchi and Yukinkotchi.








