スポーツブラのお姉さんイラストです!!
部屋で運動していたせいか汗ばんだ肌がまたえっちな感じですね。
暑くてブラを取ってしまうシーンも、、、
This is an illustration of a woman wearing a sports bra!
Her sweaty skin is also echigo-ish, probably because she was exercising in her room.
She is so hot that she takes off her bra,