Otome ga Kanaderu Koi no Aria

Tsukasa is a sopranista-in-training, a male who can sing in the same vocal range as a female soprano. He had been studying overseas for the past year and came back to Japan a month early for vacation to surprise his parents.

However, they were gone for a trip and were having the house fully renovated while away, so he ended up without a place to stay. After deciding to live alone for the month, he met a girl named Ayaka by chance when she heard him sing at the park.