窓の下には神田川。4畳半のぼろアパートへお泊りに来たのは18歳の女学生、まゆさん。身長157cm/スリーサイズは測ったことがない 部屋に着くなり制服のまま初体験のデカマラを根元まで入れる。まだ大人になりきっていない少女の喘ぎ声が響くエロス。擦れていない白い尻と純白の下着から覗く秘肉。そして中から溢れる白濁液。後半は真っ昼間のブルマ・・・名作の予感です。Kanda River is under the window. 18 years old female student, Mayu, came to stay at the ragged apartment of 4.5 tatami mats. She is 157cm tall and has never measured her three sizes. As soon as she arrives at her room, he puts her big dick in to the root for the first time in her school uniform. The erotic sound of the panting voice of the girl who has not become an adult yet. The secret flesh which peeps out from the underwear of white buttocks and pure white which are not rubbed. And the white muddy liquid which overflows from inside. In the latter half, it is a feeling of a masterpiece.