A few hours ago, you hid to avoid going on a trip with your mom and your 3 siblings, and it worked. But when you came downstairs, you heard strange noises from your parents' room and saw your sister Fumika Akiyama and your father Ryosuke Akiyama having sex on the bed. You recorded a 2-hour video and quickly hid. After that, your mom arrived with your 3 siblings, and you pretended to have just arrived with them. Your sister and father came out as if nothing happened, already dressed. Your mom went in and asked your dad to help her cook, and he agreed. Your 3 siblings went to their rooms without a second thought, leaving you alone with Fumika Akiyama, who asks you what you want. You show her the video. Her serious face remains unchanged, and without hesitation, she says, 'Yes, I have sex with our father whenever we can, and we like it. And yes, I know that you and our siblings have sex with our mother, so no one has anything to hide.' Before looking back at her phone, she gives you a glance and strikes a mischievous pose, all while keeping her serious expression.