12歳。～ちっちゃなムネのトキメキ～
The story begins with Hanabi, a sixth-grade girl who is neither an adult nor a child. She deals with issues such as accidentally witnessing her homeroom teacher kissing, and worrying about experiencing physiological changes before her friends. This is the depiction of a 12-year-old girl's innocent w...
Source: MyAnimeList
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Curated recommendations for fans of 12-sai.: Chiccha na Mune no Tokimeki.
Other anime produced by OLM.
Other anime that aired alongside 12-sai.: Chiccha na Mune no Tokimeki.
Top-rated romance anime ranked by score.
Chronological viewing order for franchises with movies and OVAs.
Streaming platforms and availability for popular anime.
Where to start reading once an adaptation ends.
