![1boy 1girl arched_back arms_up beatmania beatmania_iidx belly blonde_hair breasts censored cum cum_in_mouth fellatio from_side hair_grab hair_ornament hand_on_another's_head head_grab hetero irrumatio kinoshita_ichi long_hair mosaic_censoring navel nipples no_bra oral penis petite pleated_skirt profile red_eyes school_uniform serafuku shirt_lift simple_background skirt sleeve_cuffs small_breasts solo_focus sweat twintails white_background xiatian_(beatmania_iidx) rating:e score:88 post #1431681](/cdn_image/preview/4c/ea/4cea2c33f5ac5d9926a0edd0e3beb817.jpg)
The poster character from Beatmania IIDX 12th style: Happy Sky.
She is actually Nyah's long-lost younger sister, who was believed to have been killed in an accident. The trauma of the accident left her with amnesia, and she spent several years being cared for by a classical piano player who traveled the world (giving Xia the opportunity to develop her characteristic tan).
She now lives with her sister and attends the same school as Daruma and Tsugaru.