School Days Wiki
Ayumu Inou
Inou Ayumu.jpg
Age 3 (Snow Radish Vacation!!)

23 (Large PonPon)

Gender Male
Hair Black
Eyes Amber
Affiliation Inou Family
Occupation Businessman
Family and Relatives Tomaru Sawagoe (father/maternal half-uncle)

Moegi Inou (mother/paternal half-aunt)
Jou Inou (double grandfather)
Mrs. Inou (maternal grandmother)
Ms. Sawagoe (paternal grandmother)
Rurika Washino (wife)
Misaki Washino (mother of child)
Kaori Itazaki (mother of child)
Tamie Kirishima (lover)
Satsuki Shigehara (mother of child)
Kagura Inou (older sister/double half-cousin/mother of children)
Youko Saionji (younger sister/double half-cousin)
Moeka Sekihata (younger sister/double half-cousin)
Touri Sawagoe (paternal half-sister/lover)
Makoto Itou (paternal half-brother)
Itaru Itou (paternal half-sister)
Shun Hazama (paternal half-brother)
Toki Hazama (paternal half-sister)
Kuu Hazama (paternal half-brother)
Rideru Takatsukasa (paternal half-sister)
Tomomasa Sawagoe (paternal half-brother)
Kei Ogata (paternal half-brother)
Shinichi Shiba (paternal half-brother)
Youji Shiba (paternal half-brother)
Yukari Nagawa (paternal half-sister/maternal first-cousin/lover)
Midori Nagawa (maternal first-cousin/daughter [via Asagi]/mother of child)
Sakura Nagawa (maternal first-cousin/daughter [via Asagi])
Tomomasa Sawagoe (paternal half-brother/paternal half-cousin))
Miki Sawanaga (daughter [via Mrs. Sawanaga])
Taisuke Sawanaga (son [via Mrs. Sawanaga])
Rurika's child (child)
Misaki's daughter (daughter)
Yukari's daughter (daughter)
Touri's daughter(daughter)
Touri's child (child)
Kaori's daughter (daughter)

Ayumu Inou (伊能 歩 Inou Ayumu) is the protagonist of Large PonPon


Ayumu Inou is the second child and only son of Moegi Inou and Tomaru Sawagoe. Moegi raised both him and his older sister Kagura alone and kept their father's identity secret from everyone. Thus, he and Kagura grew up not knowing that Tomaru was their father, until Tomaru met him.


While outwardly an average salaryman, Ayumu is implied to have been deeply traumatized and warped by the sexual abuse inflicted on him by his aunt Asagi and her friends.

Snow Radish Vacation

As Moegi and Kagura would be busy during the time Asagi and her friends would stay over, Ayumu was left in the care of his grandmother.

After Snow Radish Vacation

As Ayumu grew older, Asagi lusted after him because she saw Tomaru in him. Ayumu was sexually exploited by Asagi and her friends, siring Midori and Sakura via Asagi, as well as Miki and Taisuke via Asagi's friend, Mrs. Sawanaga. He also became a sex-crazed beast, even to the point of raping his own sister and mother, as well as forcing his nephew Wataru to violate Kagura for rejecting his advances, and eventually forcing another child by rape on Kagura.

Summer Radish Vacation

Although he doesn't make an appearance, Kagura mentions that Ayumu is dating Rurika. Kagura is also pregnant with Ayumu's child.

It's also mentioned that Ayumu's younger sister, Youko, had developed incestuous feelings for him, which Kagura and their mother circumvented.


A year after Large PonPon, Ayumu and Rurika are reconciled and married, leading the happy life of new parents. However, during the time Rurika was hospitalized, Ayumu had affairs with several other women behind Rurika's back.

One day, Rurika calls him to go with her to visit her boss, Tamie, who had been hospitalized during the last month of her pregnancy. He does so reluctantly, fearing that Rurika has discovered his relationship with Tamie and that he is the father of her child.


  • His given name Ayumu () means "a step/stride". His name shares a footwork theme with those of his sisters Kagura and Youko and his sister-niece Mai.
  • His surname may reference Tadataka Inou, a cartographer known for completing the first map of Japan, OR Kanori Inou, an anthropologist known for his studies in Taiwanese Aborigines.



  • Ayumu is the oldest known son of Tomaru.
  • Ayumu is the most muscular of all the protagonists.
  • Ayumu is the son of Tomaru who has the most offspring.
  • As of date, he is the only protagonist son of Tomaru who remains unvoiced in any media.