Kawaisou na Goshujin-sama

"You can get hurt a lot, and in the end, you can come back to me."

Shinoda Rio has an arrogant and haughty personality.

Since childhood, he's been constantly bothered by his quiet and introverted childhood friend, Kawakami Kei.

At some point, he began to act as Kei's "master,"

Their relationship reverses on his 20th birthday.

"From now on—

I'm going to keep you as my pet."

Conquered both mentally and physically, Rio tried to escape into the pleasures given to him and forget about reality,

The relationship gradually began to change...?