Chiisana Koi no Monogatari: Chichi to Sally Hatsukoi no Shiki
Chiisana Koi no Monogatari - Chichi to Sally Hatsukoi no Shiki ／ Chiisana Koi no Monogatari: Chitchi to Sally Hatsukoi no Shiki ／ Chīsana Koi no Monogatari - Chichi to Sally Hatsukoi no Shiki ／ Little Love Story: Chitchi and Sally, The Four Seasons of First Love ／ chiikoi ／ ちいこい ／ 小さな恋のものがたり チッチとサリー初恋の四季 ／ 小恋
Description
Tiny schoolgirl Chiiko develops a crush on older boy Sally and believes herself to be his girlfriend, although Sally is already involved in a love triangle with a girl called Tonko. (Source: The Anime Encyclopedia)