A protagonist in [[Love Live! Sunshine!!]]. Hanamaru is a diligent girl who was raised in a temple and loves books. Because of her upbringing, she is easily fascinated by technology. She tends to end her sentences with the verbal tic "[[zura (phrase)|zura]]", due to her Shizuoka dialect.

She is a member of the Aqours sub-unit [[azalea (love live!)|AZALEA]], alongside [[Kurosawa Dia]] and [[Matsuura Kanan]]. She looks up to [[Hoshizora Rin]] from predecessor µ's. Like Rin, [[Sega]] also selected her as an image girl to feature in advertisements alongside [[Sonic the Hedgehog|Sonic]].

She has [[yellow eyes]] and [[medium hair|medium]]/[[long hair|long]], [[brown hair]] with [[sidelocks]]. She is close friends with [[Kurosawa Ruby]].

Voiced by [[Takatsuki Kanako]].
国木田花丸 よしまる普及委員会 Hanamaru_Kunikida