Seisa Yawasaki is the Ultimate Surgeon. He relies solely on facts and logic, with little to no regard for the feelings of others. He’s not exactly subtle about how much he dislikes his classmates, and claims that he only decided to join the trip to Raion city to provide medical aid if needed. He’s easily angered, and has a bad temper, but does not let it overlap with his work under any circumstances. Despite being a jerk sometimes, he does care for his patients, and is incredibly understanding when it comes to them alone.

Alright, I'll be direct with this one. His attitude and way of speaking should be very reminescent of Fuyuhiko Kuzuryu. He tends to get very fired up, and is very verbally agressive, despite his professionalism. He tends to completely snap when insulted (especially regarding his height) so voice actors should be prepared for his occasional flip-outs.