[Yakisoba Pants (Hiiragi Popura, Grand Deer)] Kako ni Modotte Akogare no Onee-san o Netottemita | I Went Back In Time To Do NTR With My Beloved Onee-san [Full Color]

A young boy experiences a surreal shift in time, finding himself reunited with his beloved older sister in a way he never expected. While appearing to be a simple morning routine, the tension rises as he realizes the physical changes in her body and the unexpected sensations shared between them. What begins as a playful encounter quickly turns into a much deeper, more permanent connection that leaves everyone in their shared world forever changed.