Guru Guru Pon Chan

Guru Guru Pon Chan is a manga series created by Satomi Ikezawa, the creator of Othello.

It tells about a Labrador Retriever pup named Ponta, the Koizumi's family pet and trouble maker. One day, Grandpa Koizumi creates the Guru Guru Bone in order to make animals speak in English. When Ponta eats it, she turns into a little human girl. Ponta runs outside and meets Mirai Iwaki, the most popular boy in his school when he saves her from almost being hit by a car, falling in love with him at first sight before puking up the Guru Guru Bone and running away. Realising that she has fallen for Mirai, she resolves to become human so they can be together. By the time she recovers the Bone (which Mirai kept) she's aged enough that when she kisses it she takes the form of a cute teenage girl. Mirai likes her even after finding out she's a dog, but questions whether a relationship between human and canine can ever work, or whether he's doomed to become known as "the pervert who does it with dogs". And so their bumpy relationship begins...

The series ran for 9 volumes from 1998 to 2000, which were released in English by Del Rey Manga. A 4 volume spin-off sequel called Guru Guru Pon-chan Okawari ("Second Helping") was released several years later, which focussed on a girl with a male chihuahua who becomes human instead of the original characters.

Tropes included
"Soichiro: This can't be happening! It's not like this is a manga or something!
 * Alpha Bitch: Rumi. She rapidly becomes irrelevant though.
 * Cloudcuckoolander: Ponta comes across like this sometimes due to being, well, a dog.
 * Demoted to Extra: Soichiro and Mama are quickly reduced to having practically no role in the series. On the other hand, Papa never really made it beyond extra.
 * Erotic Eating: The first time Ponta goes into heat, she eats a pear so delightfully that she hospitalises half the boys in school due to catastrophic blood loss. The second time she starts mouthing a Matsutake mushroom in an incredibly suggestive manner.
 * Fanservice: Ponta is also a real Innocent Fanservice Girl.
 * Girlish Pigtails: Ponta sports these in her human form.
 * Incredibly Lame Pun: The first time Ojii-chan has Ponta transform intentionally, she repeatedly spins around for a brief Transformation Sequence. "Guru guru" is "spin" in Japanese.
 * Interspecies Romance: Ponta and Mirai.
 * Medium Awareness: Happens quite often.
 * Medium Awareness: Happens quite often.

Ojii-chan: ...but it is a manga."


 * Mood Whiplash: Sometimes hits really hard, especially at the end of the arc. The arc to that point had been about  only to end with
 * Naked on Arrival: If Ponta is not wearing clothes as a dog and then turns human, she'll be completely nude.
 * Squick: Even if the basic concept doesn't bother you, some of the jokes are rather off-putting.
 * Ridiculously Cute Critter: Ponta as a puppy, usually in flashbacks.
 * Stalker with a Crush:
 * Teen Pregnancy:
 * Transformation Trinket: Guru Guru Bone.
 * What Measure Is a Humanoid?
 * Yandere: initially seems to be like this, but is eventually revealed to be just a complete Cloudcuckoolander. Still quite probably insane (she thinks the fairies talk to her) but not malevolent.