We asked to be in here... (Pixiv Fanbox)

2 guys discovered the house of an elder man who lives alone like normally does. But he is the secret practitioner of Ninja Bondage slave that was viral in an underground fetish sex group on the sns a few years ago. after they found out and gave it a try practicing... they agreed to ask for a visit and stay for ninja bondage training every weekend and didn't even give the name at all.