Shinjimaru Yasuhiro

also known as Shinjimaru Yasu, also known as The First Shinji

went through a few redesigns, renames and a couple personality changes but it all counts as one character - tall swordsboy with scarves and superspeed

... i called him "talkative" in my notes ten years ago? he's not exceptionally unfriendly but I guess the fact he even starts conversations put him in "talkative" in my book...

Normally serious and level-headed, takes on himself the role of peacemaker with varied results

Has a family technique that allows him to come close-ish to the speed of light, but it messes with his head and he has to recover for a few days afterwards. Prone to spouting gibberish during that period