Eminence In Shadow (Manga) Vol 06

Having successfully entered the Bushin Festival in disguise, the stage is set for Cid to enact his master plan and fulfill his long-cherished dream-to be a mysterious weakling who shows up at a tournament and everyone goes "Hold up, that idiot's gonna get himself killed!", but then he's actually super-strong and the crowd's like "Wow, who is that guy!?" Yen Press
(W) Daisuke Aizawa (A) Anri Sakano