12-sai.: Chicchana Mune no Tokimeki 2nd Season
Japanese title: 12歳。～ちっちゃなムネのトキメキ～
Type: TV
Episodes: 12
Premiered: fall 2016
Source: Manga
Genres: Romance
Studios: OLM
Producers: Shogakukan-Shueisha Productions, AT-X, Nippon Columbia, Warner Bros. Japan, Shogakukan, JR East Marketing & Communications, Sun TV
Duration: 24 min per ep
Rating: PG - Children

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. The series depicts a 12-year-old girl's innocent worries and first love.

(Source: ANN)