We're just friends with benefits. I feel like if we confessed our feelings to each other, it would end the relationship, so we just stay friends with benefits and don't say anything. (Kinoshita Hikari HODV-21734)

It was nothing more than a relationship where, after meeting, they had sex several times, exhausting their sexual desires. Even their communication was through software. The only things they knew about each other were their physical compatibility and how delicious the sandwiches they ate in the park were. Actually, it was love at first sight… but since it was only a physical relationship without the constraints of romance, they couldn't say anything. They knew everything about each other's bodies—the shape of my penis, the smell of my semen, the scent of her vagina, her breath when we kissed, the warmth of her mouth, the sounds of pleasure, her expressions during orgasm… Yet, they remained just casual sex partners, unable to express their feelings.