Inga, a mysterious boy who follows Shinjūrō. It seems that he and Shinjūrō are tied together by a curious bond, but no one knows the nature of it. Inga is usually protected by Shinjūrō, but when a crisis is at hand, the roles are reversed. When the time comes, Inga can turn into a mature woman and help Shinjuro solve cases.
Inga appears to be a young boy between the ages of 13 - 14. He has a small stature (155 cm) and very pale skin. This and the fact that his eyes are usually tinted light yellow, makes him appear very sickly. His slightly curly hair is a purple-ish grey. His hair is also very long and it normally covers his right eye. When his hair is lifted, it is revealed that he has a black mark over his right eye, that can be fully seen when he transforms in his adult form.
He wears black cargo pants that are cut up to his knees. His right sock is black and pulled up to his knee, while his other leg is bare. Inga wears a light pink shirt, with a black waistcoat over it. The sleeves of the shirt are rolled up to his elbows. He has a white, fluffy hat on his head that resembles a panda. Two black, long mittens are connected to the hat by strings and Inga is often seen wearing them. In addition, Inga always wears a black glove made out of fabric, on his left hand.
Female Adult Form:
When Inga uses his ability to transform in his true form, he drastically changes appearance. Now, he is a she, a full grown woman. She is quite tall and fairly slim, with large breasts. She has light skin, purple eyes and long purple hair. As Inga in his normal form, covered his right eye, Inga's female form has a black, filled up circle around her left eye. The same mark also appears on Inga in his young form.
Inga's female form also has an adaption of Inga's panda hat. In this form, she wears a white fluffy scarf behind her back, again with the mittens attached to it. While boy-Inga usually wears his mittens, female Inga leavs them hanging. She also wears a small black top and one red and one black sleeve, exposing her cleavage and a large part of her stomach. She wears red and black pants, but with only one red "sleeve". She wears a black, long sock on her right leg.
Inga has a very bubbly personality. He is always active and child-like, sometimes even naïve. He is very loyal to Shinjūrō and has an affectionate relationship with him. He admires Shinjūrō and calls him "The Last Great Detective". Inga is always hungry after the truth and wants to know the whole story as soon as possible. This is also why he sometimes "can't hold it any longer". This means that he is eager to tranform into his female, adult form, use his ability and find out the truth. When he and Shinjūrō get closer to the truth, he gets overly excited.
Inga in his female form, has a slightly different personality. When Inga transforms, she becomes more flirty, but also more sadistic. She has a temper and sometimes resorts to violence. She is also way more cool-headed than the normal Inga, and even manipulative.