Tokyo Crazy Paradise (東京クレイジーパラダイス, Tōkyō Kureijī Paradaisu) is a shōjo manga series by Yoshiki Nakamura.

[1] It takes place in Tokyo, Japan, in the year 2020, revolving around the lives of fourteen-year-old Tsukasa Kozuki as she acts as bodyguard for her classmate, Ryuji Shirogami, who is the third generation boss of the yakuza group, Kuryugumi.

It is also an example of moral decay; the series opens with a girl being attacked in broad daylight with people apathetically passing by, remarking that she should take care of herself.

Not wanting their daughter to suffer the same fate, Tsukasa Kozuki's cop parents raise and teach her to live as a boy.

After catching their parents' killer, Tsukasa becomes indebted to Ryuji when her brothers eat a veritable fortune on his tab and he uses the opportunity to tie her into becoming his personal bodyguard until her debt is paid off.

Tsukasa has dreams of becoming a police officer like her parents, which conflicts with Ryuji's position as the boss of the largest syndicate in the Kantō area of Japan.

The only reason he wants the kagi (the key to opening the door to the plant that a drug Garyukai seeks is stemmed from) is to 'rule the world' because he is the only one with the 'right to do so'.

For example, East Asian Studies scholar Erik Ropers comments that the author "Nakamura can be seen to argue for and make a case for young women to question and challenge existing societal expectations and gender roles.