Kyozou Teien ~Shoujo no Chiru Basho~

A guy got lost and ran out of gas. He ended up at a mansion where a girl and her maid lives. He is invited to stay until their guardian's monthly visit. When she arrived, he found out that this girl is the one that his brother died to save from a car accident. Thinking that she likes him only as his brother, he decided to make them into pets. Will he live happy or master?