Shounen Princess: Putri Harimau Naoko

Shounen Princess: Putri Harimau Naoko (Japanese: 少年☆プリンセス Putri Harimau Naoko; "Boy Princess: Putri Harimau Naoko") is an otokonoko romance manga series by Seishiro Matsuri. It was serialized in Akita Shoten's monthly magazine Champion Red from January 19 to May 19, 2014, and later collected in a single tankōbon volume, for which the subtitle was changed to Putri Harimau Nao. The decision to end the series was Akita Shoten's; Matsuri said in 2019 that he would like to continue it if a publisher were to finance further production.

The story follows a young man who is mistaken for a woman by the prince of Urunei, who wants to marry him. His father, a bureaucrat in the Japanese Ministry of Foreign Affairs, is eager to please Urunei and advance his career, so he sends him against his will to Urunei as his daughter Nao. As the future crown princess, Nao has to get used to pretending to be a woman, while being targeted by assassins.

Critics enjoyed the series, finding the protagonist and his gradual turn to femininity appealing, as well as how the story goes beyond just a "reversed gender" scenario, but criticized the ending as feeling rushed. According to Matsuri, sales of the series were positively affected by the premiere of the anime series Himegoto, which also features a cross-dressing male character.