Overflow Pleasure Box

オーバーフロー ぷれじゃ~ボックス

Overflow Pleasure Box
TitleOverflow Pleasure Box
Original titleオーバーフロー ぷれじゃ~ボックス
Aliasesオーバーフロー ぷれじゃ~ぼっくす, オーバーフロー ぷれじゃーボックス
Publishers 0verflow
Original game
Large PonPon
Pure Mail


Composed by:

PureChatter: A mini game typing.
☆QuizDE☆PonPon : Sequel to LargePonPon and a Quiz game.
PureMail Gaiden: Gaiden story of PureMail.
PureMail After
Staff Room
A trailer of a future game

Main characters

Aoba Eri
Aoba Eri青葉 衣里 A
MeasurementsHeight: 154cm, Weight: 46kg, Bust-Waist-Hips: 83-57-82cm
Birthday18 September
Hair, Blue, Short
Eyes, Pink
Personality, Tomboy
Role, Middle School Student, Younger Sister
Subject of, Avoidable Rape
Engages in (Sexual), Virgin Sex
Nagawa Midori
Nagawa Midori奈川 碧 AB
MeasurementsHeight: 155cm, Weight: 46kg, Bust-Waist-Hips: 80-56-84cm
Birthday20 October
Hair, Brown, Long
Eyes, Blue
Clothes, Bondage Harness, Collar, Dress, Hair Ribbon, Rain Coat, School Uniform
Items, Video Camera, Whip
Personality, Friendly
Role, Classmate, Dominant Partner, Exhibitionist, Inbred, Middle School Student, Niece, Submissive Partner
Engages in, Blackmail, Bondage, Torture
Subject of, Avoidable Rape, Non-consensual Porn Filming, Nymphomania, Torture
Engages in (Sexual), Blowjob, Incest, Peeing, Twin Blowjob, Virgin Sex
Subject of (Sexual), Enema, Pink Rotor, Vibrator


The main heroine of Pure Mail. Midori is a typical sweet girl with friendly personality and good in academic as well as good friend to Miki. Kei accidentally come to know that she is EVE, his chat friend and classmate.

Ogata Ai
Ogata Ai緒方 藍 B
MeasurementsHeight: 150cm, Weight: 41kg, Bust-Waist-Hips: 78-56-79cm
Birthday3 June
Hair, Blond, Pubic Hair
Eyes, Green
Clothes, Ankle Socks, Dress, Sports Shoes
Role, Half-sister, Middle School Student
Engages in (Sexual), Incest, Virgin Sex
Sawanaga Miki
Sawanaga Miki澤永 美紀 A
MeasurementsHeight: 161cm, Weight: 50kg, Bust-Waist-Hips: 86-57-80cm
Birthday29 May
Hair, Brown, Short
Eyes, Amber
Clothes, Bondage Harness, School Uniform, Yukata
Role, Daughter, Niece, Non-blood-related Daughter, Older Sister
Engages in, Basketball, Bondage
Subject of, Avoidable Rape, Pregnancy, Torture
Engages in (Sexual), Blowjob, Inbreeding, Incest, Twin Blowjob, Virgin Sex


Midori's bestfriend who was also Kei's former classmate last year even though they never talked. A lively sport girl who belonged to the basketball club. Famous among the girls for her boyish personality and hardly get along with Ryouka.

She is the older sister of Sawanaga Taisuke from School Days and the daughter of Inou Ayumu from Large PonPon.

Sekihata Rin
Sekihata Rin関端 りん O
MeasurementsHeight: 124cm, Weight: 24kg, Bust-Waist-Hips: 59-46-60cm
Birthday29 February
Hair, Blond
Eyes, Blue
Clothes, Clothing with Ribbons
Personality, Carefree
Role, Daughter, Elementary School Student, Niece
Subject of, Pregnancy
Engages in (Sexual), Inbreeding, Incest, Virgin Sex


An adorable little girl that Kei met outside the school after he got into fight between Midori and Miki.

Rin is the daughter of Sekihata Kunihiro, the teacher at Kei's school.

Despite her cheerful personality, Rin has a tragic past as her mother, Moeka Inou, was taken away from her and her father by an evil man, Sawagoe Tomaru.

Washino Rurika
Washino Rurika鷲野 るり香 
Hair, Blue, Bun, Long
Eyes, Blue
Clothes, Coat Cape, Glasses, Hospital Gown, Skirt, Sunglasses, Turtleneck Sweater
Role, Ex-girlfriend, Not a Virgin, Older Sister
Subject of, Pregnancy
Subject of (Sexual), Doggy Style


Ayumu's 2 years older girlfriend who broke up with him to pursue her carrier at Paris four months ago. She was later told that she was pregnant with Ayumu and come back to make him take responsibility.

Yuuki Ryouka
Yuuki Ryouka結城 綾華 B
MeasurementsHeight: 157cm, Weight: 47kg, Bust-Waist-Hips: 85-55-82cm
Birthday4 December
Hair, Blond
Eyes, Amber
Clothes, School Uniform
Personality, Classic Tsundere, Refined, Shy
Role, Class President, Middle School Student, Rival
Engages in (Sexual), Virgin Sex


The class representative of Kei's class and the daughter of Yuuki Group, which secretly, is in the final part of bankruptcy. Well known for her beauty and intelligent, she often got into fight with Miki and to the lesser extent, Midori, for the latter friendship with Miki. Despite her arrogance, Ryouka takes interest in Kei and soon falls for him.

Side characters

Hair, Brown
Clothes, Glasses
Role, Divorcee, Father, Teacher


Kei's schoolteacher and father of Rin

Shiba Shinichi
Shiba Shinichi柴 進一 
Hair, Brown
Eyes, Brown
Clothes, Glasses
Personality, Boku, Otaku
Role, Older Brother


Regularly seen with a camera, he is the older brother of Shiba Youji from Miss Each Other.