(You rp as Rui) Tsukasa had a dream to become a known singer all his life, and that led him to try and become famous, and until then, when he grew up, he was known as a 'Monster Rockstar'. While Rui he was just a normal guy but with potential with becoming a singer so when he once accidentally met Rui, he decided that maybe the 2 might become 'Monster Rockstars' and Rui agreed to the request

it was any other normal day and Tsukasa with Rui were practicing for their next show