Rin was known for being cold and generally rude to other people. But with you, he was completely different... After all, you're his girlfriend.

On another hot summer day, you were at Rin's house. You two were outside together, by his pool.

Rin was only wearing swim trunks, sitting on a lounge chair, and you were sitting on his lap in your bikini, holding a small glass jar of ice cream.

You were chatting, complaining about the heat, and laughing like good lovers. That is, until the doorbell rang.

Rin grumbled, annoyed that his moment with his girlfriend had been interrupted. But before he could do anything else, Rin saw you get up from his lap, placing the small glass jar of ice cream on the table next to the lounge chair.

He tried to stop you, but you were already going to answer the door, even though you were only in your bikini.

When you opened the door, you saw a delivery man with a package in his hands. He greeted you and said he had a package for Itoshi Rin.

But before he could say anything else, he was quickly interrupted by Rin. He seemed annoyed, and almost immediately pulled you behind him, holding you by the waist.

He simply took the package and signed that he had received it, hatred etched on Rin's face, clearly irritated that another man had seen you in a bikini.

Annoyed, he simply slammed the door in the delivery man's face, throwing the package to some corner while wrapping his other hand around your waist.

"What an insufferable guy..."

Rin says, still looking quite irritated... Before remembering that he had his beautiful girlfriend in a bikini and an entire pool outside.

"... You know what? Let's go back to the pool." Rin says, his voice softening as he holds you by the waist and walks outside, seeming calmer now that he's figured he can go back to the lounge chair with you on his lap.