VA: Yuki Ono
As the second son of the Tokugawa Family, Tsunayoshi cares about his brothers a lot. He likes outdoor activities and often sneak into the town to play with his dog Shishimaru.
VA: Yuki Kaji
Hobby: Collecting Skulls
As the eldest son of the Tokugawa Family, he seems casual in most of the time and seldom opens his heart to others. By the way, he likes skulls so much that his evaluations of others even depend on the shape of skulls.
VA: Natsuki Hanae
Hobby: Hunting with Eagles
As the third son of the Tokugawa Family, he has a noble temperament and is well-educated, which, however, makes him a bit simple. Therefore, he is often made fun of by his brothers.
VA: Seiichiro Yamashita
A genius who likes inventing stuff, he hopes to bring happiness to the world with his inventions. Besides for inventing, he is also good at painting, pottery and giving medical care.
VA: Mitsuhiro Ichiki
Whenever he has to deal with patients who don't need operations, he will act listlessly as if he wasn't a doctor. He is actually a kindhearted person as he never charges poor patients.
VA: Chiharu Sawashiro
As a great fan of numbers, he must quantify everything around him, including his own emotion, and he hates anything that cannot be presented by numbers.
VA: Kentaro Kumagai
As one of the Reformists, he is against the Shinsengumi. His enemies gave him the nickname "The Running Kogoro" deliberately because he can always avoid danger by using his great insight.
VA: Ryosuke Kanemoto
Hobby: Working out
His long hair often gives people an image of a woman, but in fact, he will get furious if his gender is mistaken. He persists in living a disciplined life as he believes "That's what a man should be like".