Kaoru Hitachiin

Kaoru Hitachiin is a member of the Host Club and Hikaru's younger twin in Ouran High School Host Club. The twins initially perform an exaggerated brotherly act for customers while treating most social interactions as games.

Kaoru Hitachiin's school life and character development

Kaoru is playful and mischievous, but he is more observant, emotionally mature, and considerate than Hikaru. He uses acting, fashion sense, and near-perfect coordination with his twin rather than any supernatural ability.

Kaoru Hitachiin's relationships and major turning points

Kaoru recognizes Hikaru's feelings for Haruhi Fujioka and often puts his brother's growth ahead of his own desires. Expanding beyond their closed twin world becomes the most important part of his development.