Yamada-kun to Nananin no Majo Wiki
Momoko Seishuin.png
Momoko Seishuin

清集院 桃子


Seishuin Momoko


Female.png Female

Hair Color


Eye Color


Professional Status



Suzaku High School Suzaku High School
Judo Team




Judo Team

Personal Status



Body Swap

Affected Spell


Manga Debut

Chapter 112

Image Gallery

Momoko Seishuin (清集院 桃子 Seishuin Momoko) is one of the second set of witches with the Body Swapping power.


Momoko's appearance during her first year.

Momoko is a tall obese girl, with pink hair reaching the side of her face. She has two small ponytails by the side tied with braids. She has noticeably thick lips.[1] During first year she was very petite with a slightly curvy build and had less thick lips. She was around the height of Nancy. She still had the same hairstyle.

Her uniform consists of a white collared shirt underneath a white vest. She also wears a striped ribbon, a plaid skirt black socks and white leather shoes.[1] During first year, her uniform was basically the same as she has now, albeit slimmer and instead a sleeveless white vest. In her Judo uniform she wears the standard Judo outfit.[2]


Momoko honored to help.

Momoko is shown to be cooperative, having agreed to let Ryu Yamada copy her power. She is also shown to see the student council with high regards, even stating that she's honored to help them. She also doesn't seem to mind to kiss Ryu, having been excited to kiss him, and waved happily at him when she was leaving.[1]



Winter Break Arc

Momoko preparing to kiss Ryu

Momoko is called to the Student Council office to let Ryu Yamada copy her powers, whilst she happily cooperates Ryu is terrified to do so. After a short struggle they switch back, as she states that she is honored to help them. After Nancy and Toranosuke Miyamura had finished their fight, she and Nancy leave the office, the former happily waving a goodbye.[1]

Momoko in her Judo Club

Later, Ryu ask a club member of hers if they could switch dates for the winter trip. The club member tells him that Judo club has fifty members on their team so they can't make any last minute changes as Momoko knocks down one of her club members, calling forth the next one.[2]

Second Witch War Arc

Momoko was asked again to let Ryu Yamada copy her power so he could infiltrate the rally in Kentaro Tsubaki's body with Nancy [3]. Much later Nancy called her and the other witches to come to the Light Music Club room to inform them that they will do a ceremony to get Ryu's memory back. She is surprised to hear that the seven of them will be able to grant a wish together.[4] The next day she is told by Nancy to follow her as Toranosuke Miyamura unlocks the door.[5] She waits with the others as Ushio Igarashi arrives. After Kotori Moegi's power had been returned, she and the other witches hold hands and close their eyes. As time is stopped, Nancy begins to flip their skirts. After Nancy and Ryu kiss, time starts moving again.[6] She and the others blame Nancy for the underwear fiasco.[7]

On the Election Day, during the voting she gets her memories of Nene Odagiri's speech erased by Ushio, forgetting him, Masamune Ichijo and Ryu.[8]

Stolen Notes Arc

Momoko is called to the office to let Ryu Yamada copy her power again. After a short while they switch back, she states she is honored to be of help to the president and leaves happily. However, despite having been kissed by Ryu, her erased memories did not return.[9]

Recovering the Lost Memories Arc

On the first day of the new school term, Momoko and her friends make a booth for the the entrance ceremony. As a club member states their club's name, she flips a new student and states that they gladly welcome beginners.[10]

After Shinichi Tamaki wishes to bring back all the memories, Momoko starts to remember all her erased memories.[11]


Body Swapping (入れ替わり Irekawari): As a witch, Momoko can swap bodies with whoever she kisses.[1]

Judo Specialist: Being a member of the Judo club, Momoko is quite skilled in this form of martial arts.[2]

Enhanced Strength: As with her skills in Judo, Momoko is able throw opponents heavier than her.



The Body Swapping Witch of the second set
Preceded by Years Succeeded by
Unknown 2011-2013 Incumbent


  • The name Momoko means "peach" (桃) (momo) and "child" (子) (ko).
  • Momoko's surname Seishuin means "clear, pure, clean" (清) (sei), "collection" (集) (shu) and "hospital" (院) (in).


  1. 1.0 1.1 1.2 1.3 1.4 Yamadakun to Nananin no Majo Manga: Chapter 112, Pages 1-3
  2. 2.0 2.1 2.2 Yamada-kun to Nananin no Majo Manga: Chapter 114, Page 11
  3. Yamada-kun to Nananin no Majo Manga: Chapter 135, Page 15
  4. Yamada-kun to Nananin no Majo Manga: Chapter 156, Pages 2-3
  5. Yamada-kun to Nananin no Majo Manga: Chapter 156, Page 17
  6. Yamada-Kun to Nananin no Majo Manga: Chapter 157, Pages 2-9
  7. Yamada-Kun to Nananin no Majo Manga: Chapter 162, Page 4
  8. Yamada-kun to Nananin no Majo Manga: Chapter 172, Page 15
  9. Yamada-kun to Nananin no Majo Manga: Chapter 177, Pages 9-10
  10. Yamada-kun to Nananin no Majo Manga: Chapter 187, Page 2
  11. Yamada-kun to Nananin no Majo Manga: Chapter 224, Pages 6-7