If you can hold back on Tachibana's best techniques, you can cum inside her! If you can't hold back on, you can reverse anal!

This project is a reverse anal sex if you can withstand Tachibana's finest techniques, if you can't withstand raw creampie! When Seri-chan says that if she can get all the contestants to ejaculate within the time limit, she will be excited and excited! What kind of erotic techniques will Seri-chan show off? And will the challenger be able to withstand?! The final shocking development!!