Kimi To Boku No Alternative Lingerie summary:

One day fashion designer Oru receives an unexpected visitor. His name is Tsumugu and he begs to become her apprentice. Although she initially refuses his request, his diligence wins her over and she agrees to let him live with her as her new "housekeeper." Oru's been struggling lately with her latest project?designing a line of sexy lingerie?because she's been so focused on work that she's never had a boyfriend. Seeking a man's advice, she has Tsumugu help her out, but is surprised by how her body reacts to his touch when he helps her try on her new project. This is a sweet love story about a cohabiting pair!