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The primary protagonist. He passed the examination as a supplementary student. He's just grateful to be given a chance to go to an elite school. Fell in love with Alice the first day of school and is so excited to be her partner he's even willing to put up with her mean hidden personality. He's so ... read more

The primary protagonist. He passed the examination as a supplementary student. He's just grateful to be given a chance to go to an elite school. Fell in love with Alice the first day of school and is so excited to be her partner he's even willing to put up with her mean hidden personality. He's so effeminate it's a shock to everyone that he has a huge penis, the largest of anyone in his class.

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Alice is the granddaughter of a former president of Nihon Daiichi Gakuen. For her family's honor she agrees to attend the school and practice for naked week however she tries to get out of her duty any way she can.

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Chris's second partner. She was teamed up with him because there was an odd number of girls to boys even though he was already partners with Alice. Sana hopes to become a doctor someday but can't afford a good high school to attend so she becomes a scholarship student at Nihon Daiichi Gakuen. She p... read more

Chris's second partner. She was teamed up with him because there was an odd number of girls to boys even though he was already partners with Alice. Sana hopes to become a doctor someday but can't afford a good high school to attend so she becomes a scholarship student at Nihon Daiichi Gakuen. She puts up with training for naked week knowing it's her only hope of becoming a doctor but she's extremely embarrassed by it. She has the largest breasts in her class which just brings her embarrassment.

♀ f

Asahina is a third year middle school student at Nihon Daiichi Academy and a classmate of Shizuku and Akira. She tells Shizuku that she has done naked week 9 times already because she started in kindergarten so she is used to boys staring at her during the week and being naked in front of crowds doe... read more

Asahina is a third year middle school student at Nihon Daiichi Academy and a classmate of Shizuku and Akira. She tells Shizuku that she has done naked week 9 times already because she started in kindergarten so she is used to boys staring at her during the week and being naked in front of crowds doesn't bother her. Because Shizuku peed herself and passed out from embarrassment during her public speech while naked Akari is often assigned to go with her to public events so that Shizuku isn't alone.

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Hisahara is a student who always achieve very high scores. She knows the protagonist when he delivers her homework as she was sick. They became friends, then soon afterwards move to a prestigious high school in Tokyo because their school was damaged by fire. Here, however, they are required to atten... read more

Hisahara is a student who always achieve very high scores. She knows the protagonist when he delivers her homework as she was sick. They became friends, then soon afterwards move to a prestigious high school in Tokyo because their school was damaged by fire. Here, however, they are required to attend training for an unique program called "naked school". Since then, Hisahara has to engage in so many embarrassing situations. The protagonist sometimes helps her, sometimes is the one who create these situations (following teacher's instruction). The training brought them close together, and changed their relationship forever.

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♂ m

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♀ f

♂ m

Chris's friend and Kanon's partner. He's excited by naked week and enjoys both the chance to see naked girls and being naked himself.

♀ f

Kanon is a very shy girl who's partnered with Yuuhei during naked week training. She's impressed with how kind and considerate Chris is to his partners Alice and Sana. Her biggest fear is being raped during naked week and hopes Chris can help rescue her when she's in need. She is voiced only in the... read more

Kanon is a very shy girl who's partnered with Yuuhei during naked week training. She's impressed with how kind and considerate Chris is to his partners Alice and Sana. Her biggest fear is being raped during naked week and hopes Chris can help rescue her when she's in need. She is voiced only in the Sana Append where she takes the role of sub-heroine to Sana and Alice.