Man of Many Faces

By day nine-year-old Akira Ijyuin is a normal student at Clamp School, but at night he becomes the mysterious thief 20 Masks. His thefts are usually subject to the whims of his two mothers, which Akira pulls off without any true objections or interactions. One night Akira ducks into the room of five-year-old Utako Ōkawa in an attempt to hide from the police.

Although the pair shares a four-year age difference, they find themselves quickly falling for each other even as Akira finds himself being increasingly more involved with thefts, some of which include Utako's family. This as well as several other obstacles give the young couple's budding relationship a fair amount of difficulty.

Akira Ijuin (伊集院 玲, Ijūin Akira)

Akira is a 9-year-old elementary-school boy with a double life. By day, he is a fourth-grader of the elementary division of the CLAMP school campus, and also the Treasurer of the Elementary Division Student Council. At night, he becomes a mysterious thief who steals things in order to please his two mothers. He cares greatly for his mothers and only gets angry when they try doing something risky to help him. Akira is the successor of the renowned thief, "20 Faces", who was Akira's father; following his father's disappearance, Akira inherits the title of "20 Faces". Despite his age, he has already mastered the great skills in disguise and thievery. Said to be the top student in his grade, Akira is also skilled at cooking and housework; his cooking is said to be equivalent to the top cooks of the world, while his grace in housework makes him the most wanted bachelor. However, Akira's naivety is such that he still believes in Santa Claus – this fact really surprises Nokoru and Suō - and he is still an innocent boy in love. Akira proposes to Utako when he is 20-years-old and marries her at the age of 22. He hopes to become a pediatrician like his uncle, who happens to be the doctor at CLAMP school's infirmary. In the two last chapters, and the cover of volume 2, Utako and Akira are shown in their adult form. His birthday is December 24.

Akira appears as a main character in Clamp School Detectives and appears in his 20 Faces persona in episodes 11 and 12 of the anime adaptation of Clamp School Detectives. He makes cameo appearances in Duklyon: Clamp School Defenders, X and the video Clamp in Wonderland.

Utako Ōkawa (大川 詠心, Ōkawa Utako)

The second daughter of the head of the Ōkawa Zaibatsu, Utako is 5-years-old. When she meets Akira at the beginning of the story, she is heartbroken by her kindergarten teacher who refuses her love confession because of their 22 years difference in age. However, she quickly finds herself attracted to the mysterious thief who just breaks into her room to hide from the police. Akira's kindness helps ease Utako's anger, which when she decides that Akira will be the man of her life. Utako is not good at cooking and housework – she even mistakes salt for sugar, for example. However, she has been trying her best ever since she met 20 Faces, because she wants to be the best wife in the world. Utako seems to be more mature than those at her age, even more mature than those that are older than she is. She gets engaged to Akira at her 16th birthday and claims that his proposal is the best birthday present she ever had. She marries Akira at the age of 18. Her future career is a kindergarten teacher.

Akira's mothers (お母さんA/B, Okāsan A/B)

Akira's mothers, referred to, when it is necessary to differentiate, as "Mother A" and "Mother B". They seem to be identical twins. The reason on why Akira has two mothers is still a mystery that Clamp has not yet revealed. Said to be extremely wealthy and very beautiful, their personalities are childlike and playful and they have continually coerced first their husband, the original 20 Faces, and then their son Akira, to steal, claiming they desperately need the item they wish to be stolen. Although they seem selfish, they really care about Akira. Once, they even attempt to help by arriving at the scene in disguise (as bunny girls); however, they only mess everything up and this results in angering Akira, though their sincere apology makes him unable to remain angry for very long. They also seem to be extremely unskilled, or at least extremely unwilling, to do housework, which makes Akira the only one to do all the cooking and cleaning.

Ryūsuke Kobayashi (小林 龍佑, Kobayashi Ryūsuke)

A 16-year-old high school student in Clamp School's year 1, Z division. His dream is to be a police detective and to capture 20 Faces. As such, he's always at the center of every heist 20 Faces, commanding police officers despite the fact that he is in high school. He is unaware that Akira is in fact 20 Faces, though he gets along with the boy very well otherwise. In his later years, Ryūsuke succeeds in becoming a detective though his personality did not change much since high school.

Shigetaka Akechi (明智茂貴, Akechi Shigetaka)

Akira's uncle, age 25. He works at Clamp School's infirmary as a pediatrician. A kind-hearted individual, he seems to be fully aware that Akira is in fact 20 Faces. He will often show up at the crime scenes to give out half-hearted advice to Ryūsuke and the police, but for the most part cheers Akira on.

There were two drama CDs released.

• 20 Faces, Please!! SHINING STAR (20面相におねがい!! SHINING STAR, 20 Mensou ni Onegai!! SHINING STAR)^[2]

• 20 Faces, Please!! Not a Great Musical about Love (20面相におねがい!! 恋ほど素敵なミュージカルはない, 20 Mensou ni Onegai!! Koi hodo Suteki na Myūjikaru wa nai) ^[3]

The cast consisted of:

• Akira - Kappei Yamaguchi
• Utako - Chieko Honda
• Ryūsuke - Takeshi Kusao
• Shigetaka - Kōichi Yamadera

Note: Akira's mothers do not appear in the drama CD.