Saiki Kusuo and Shun Kaidou are the two main characters of the anime series The Disastrous Life of Saiki K. and manga. Shun saw Kusuo as an outcast same like himself, a perfect person to be friends with. So Shun really did a lot just to be friends with Kusuo, and even tried to convince him to join in with his chuunibyou antics but had no luck with that. But Shun still continued to follow Kusuo everywhere annoying him. But they still managed to build a good relationship and Shun really enjoys Kusuo's company and even trusts him as a close friend. A fanart The Disastrous Life of Saiki K. progress bar for YouTube with Saiki Kusuo and Shun Kaidou.