Tsuruko Hashikawa

Tsuruko seems cool, confident, and chill as can be... Until you spend more than five seconds with her in anything outside her comfort zone, and she completely loses it. Used to a life at sea with next to no technology and a very small social circle, Tsuruko is far from well adapted to life as a modern teen, and is plagued by anxiety near-perpetually. She's very passionate about her experiences at sea, though, and showing any interest in them can get her comfortable enough to go off on a bit of an information-dumping tangent. Though not particularly booksmart, she's eager to make herself useful and at least fairly willing to give anything a shot - her anxiety-fuelled good manners mean that she's probably too nervous to turn any request down anyway. After all, the last thing she wants to be after dead weight is an inconvenience.