[SCPX-298] 【Special Selection】 An older sister who is so serious that she turns bright red when I tell a dirty joke. Despite being beautiful, she doesn't seem to be making any effort to get a boyfriend, so I teased her by saying, 'You're a virgin, aren't you?' and to my surprise, she was the real deal! When I asked, 'Don't you have anyone you like?' the answer was me!! A brother complex!!!