Main protagonist of the series. He travels back ten years ago by an unknown event. Kyouya shows a very calm personality. He is inspired by a group of talented people known as "The Platinum Generation".

Spoiler

Kyouya had been deeply inspired by paintings of a famous female illustrator which made him feel alive when he was working as a game developer, later Kyouya found out that Aki Shino was indeed that famous illustrator named Shino Akishima.

Spoiler

In the world of 2018 he married Aki Shino (which makes her Aki Hashiba) and he was the father of a child with a daughter, Maki Hashiba.