My younger sister has a troublesome older brother who is a Cisco computer

Summary

For Yui Hasegawa, a high school student who is not very impressive. She has an older brother, Yu, who is known as the coolest and most handsome guy in school. They look so unalike that you can't believe they're sibling. There are rumors of discord, Yui, who has a ``perfect older brother,'' is troubled.It is"My brother, who is both talented and perfect, is actually a serious Cisco...!"A hilarious sitcom about a brother and sister who are complete opposites!+