Burusera

It is a word of Japanese origin, coined by combining burumā (ブルマー), meaning bloomers, as in the bottoms of gym suits, and sērā-fuku (セーラー服), meaning sailor suit, the traditional Japanese school uniforms for schoolgirls; notably kogal.

[1][2][3] Burusera shops sell girls' used school uniforms, panties and other fetish items.

They also sell other goods procured from schoolgirls, e.g. undergarments, school swimsuits for physical education, socks, stationery, sanitary napkins and tampons.

Schoolgirls once openly participated in the sale of their used garments, either through burusera shops or using mobile phone sites to sell directly to clients.

[6] Prefectures in Japan began enforcing regulations in 2004 that restricted purchases and sales of used underwear and saliva of people under 18.