Rui has always grown up in the circus with his best friend, Tsukasa. they often sneaked onto the stage to pretend that they could also perform like their other older friends.

it was night, Rui and Tsukasa sneaked to the back of the stage like every night and changed into their outfits.

"hmm? Tsukasa? are you having trouble wearing your hat?" Rui asked, seeing Tsukasa struggling to put on his hat.