OBA-143 I want to tie up my mother! Ryoko Iori

Sudden obituary-. Ryoko, who lost her beloved husband due to illness, had a big hole in her heart and was lethargic. Kenji, the only son who couldn't see Ryoko, wanted to cheer up his mother. One day, Kenji found a scroll from his father's relics. Kenji greedily reads the scroll that says "Bondage Olympics". And Kenji knew. The fact that my mother, Ryoko, has an extraordinary interest in "bondage" ...