Umi Tôdô sex with Shôhei Uno as boy watching

Umi Tôdô lying on her back with her skirt around her waist an unbuttoned shirt on as she and Shôhei Uno have sex on the floor. After finishing, we see her walking around with the shirt hanging open at times to expose her breasts. She then picks up an umbrella and starts to hit Shôhei Uno with it.