Ane x Oto ~Maid Kissa Saiwan Hanjou Ki~

It begun at the end of the summer..... You play a boy named Serizawa Nao whose parents were killed in a car accident not long time ago. Now, my only family is an elder sister Serizawa Saori. Nao and Saori decides to run a Maid Cafe by remodeling a small cafe managed by the parents.

[From dlsite]