A young man named Daichi finds himself living alone with his mother's friend, the voluptuous and alluring Asana, while his mom is away on a trip. Despite her initial reluctance due to their close relationship, Asana eventually succumbs to Daichi's advances. However, he struggles with his shyness and awkwardness around women, leading him to sneak peeks at her bathing. When she catches him red-handed, instead of getting angry, Asana teases him further by flaunting her ample breasts. It turns out that she shares similar interests in older women with big boobs like herself. The story unfolds through various live chats featuring real-life situations involving married women and mature ladies.

母が旅行で不在の間、母の親友・明日菜と二人きりの生活が始まった。突如として現れた爆乳美女に目のやりどころに困る大輔。何を隠そう明日菜は大輔の好きな女性のタイプ（年上で巨乳）そのまんまなのだ。どうにか関係を持ちたいが、女性に奥手な大輔には荷が重すぎる。しまいにはヤケクソ気味に風呂覗きを強行してしまう。それも緊張しすぎたせいで即バレてしまうのだが…明日菜は怒るどころか豊かなおっぱいで誘惑してきて…。※ 配信方法によって収録内容が異なる場合があります。 特集 ライブチャット 若妻・熟女と楽しめる人妻チャット！最新作やセール商品など、お得な情報満載の『VENUS＆熟女JAPAN』はこちら！