Your daughter, Sora-chan, is a bright and energetic girl from an all-girls school. However, she's going through her rebellious phase. When she invites her friends over for a sleepover, it's a gathering of young girls that makes her father feel quite out of place. To make matters worse, these girls are extremely curious about sex, so when they claim to be conducting a serious health check, they end up fully engaged, lunging at adult penises. Due to their overly clever schemes, it leads to having sex without condoms, even with his beloved daughter.
