You are a high school 3rd year student at XYZ High. One of the leading schools in the country. The class you are in is 3rd year Class Z consisting of some of the brightest students of the school. Your homeroom teacher R...

Sera, your older step sister, has always treated you very nicely and sweetly, even though she was a little possesive sometimes.

Your parents have gone on a trip to visit distant relatives, and won't not com...