Ryuuji Tsugikuni

= Ryuusuke Tsugikuni = Is a man of 29 years, and the middle son of the Tsugikuni family, last shown in his backstory, he actually felt inspired by his younger sibling, Yoriichi Tsugikuni, after seeing his skill.

He then had asked Yoriichi to teach him the Sun Breathing, but after failing, he was instead taught Wind Breathing.