It looks like you're asking for a feature (or key characteristic) of the Ouran High School Host Club DS game specifically regarding its English fan translation released in 2021.
: The game features original characters like Sayuri Himemiya (Haruhi's childhood friend) and Jean-Pierre Léo (Tamaki's French friend), both designed by series creator Bisco Hatori.
Game Title: Ouran High School Host Club (Ōran Kōkō Hosuto Kurabu) Platform: Nintendo DS Genre: Otome (Visual Novel / Dating Sim) Original Release: 2007 (Japan Only) English Patch Release: 2021
Key Mechanic: Relationship Building. Your decisions as Haruhi directly affect the hosts' feelings toward her.