Season 1
(2010)
Cast
as Nayu Hayama
as Haruka Shiraishi
as Yako Jingūji
as Keigo Hayama
as Kiyono Amahara
as Hiroki Komachi
as Tamaki Mizuno
as Tsukamoto-sensei
as Yōko Sagisawa
as Principal
as Ōkuma-sensei
as Kōta
as Kaori Seto
as Komachi's older brother
as Tsuzuki
as Chigusa
as Tanihara-sensei
as Suzuki
Episodes
The Girl With Adult Panties 9.0
January 4, 2010
On the first day of middle school, Nayu Hayama accidentally shows her black lace panties during the opening ceremony. Y…
This Swelling Chest 9.0
January 11, 2010
When wondering about which club to join, Yako gets a bit agitated when her mother is brought up. Whilst changing, Nayu …
A Windy Day 6.0
January 18, 2010
One of the male students, Hiroki Komachi, tries to have a word with Nayu, but ends up getting occupied at every chance …
Each Has Their Own Shape 7.0
January 25, 2010
Haruka feels down when the boys start teasing her for her big breasts, even ranking her #1 in a 'biggest breasts' chart…
Between an Adult and a Kid 9.0
February 1, 2010
Nayu explains her situation to Keigo. Hiroki then comes over to Nayu's house to apologise and ask is there's anything h…
Radical Puberty 9.0
February 8, 2010
After Kiyono joins the society, the girls become aware of her habit of teasing what's under her skirt in front of boys.…
Swaying Hearts of Men 8.0
February 15, 2010
Hiroki's newfound knowledge of underwear is affecting both his concentration and his reputation. Nayu gets a mysterious…
An Underwear Overnighter! 9.0
February 22, 2010
Mizuno has a rather dubious dream about Keigo. The next day the Underwear Society go on an overnight trip to a beach ho…
My Seventh Grade Summer Vacation! 8.0
March 1, 2010
Yako gets annoyed when her childhood friend, Kota, who insulted her flat chest when she tried changing in front of him.…
Throw Out That Chest! 8.0
March 8, 2010
Kiyono reveals she is going to be a model for her mother's underwear collection, but has a problem with her current bre…
My Afternoon with Her 8.0
March 15, 2010
As the Underwear Society make preparations for the drama club, they are asked to participate in the performance. After …
Before Meeting You... 10.0
March 22, 2010
Haruka feels betrayed by Nayu's announcement and stops being friends with her. That same night, Mizuno's apartment catc…