Tsugumi Ohba
Tsugumi Ohba (大場 つぐみ, Ōba Tsugumi) is a Japanese manga writer. They are the writer and creator of Death Note, which they worked on with manga artist Takeshi Obata.
Ohba's real identity is a closely guarded secret, and the real name, gender, and date of birth of the author are undisclosed. Ohba is commonly given male pronouns for English translations, but their gender has not been verified.
There are many facts about the writer gleaned from the profile placed at the beginning of each Death Note manga volume, two being that Ohba collects teacups and that they develop manga plots while holding their knees on a chair (like L).