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.
12-sai.: Chicchana Mune no Tokimeki (Season 0)
Kiss Hate Love (Episode 1)
Air date: 2014-04-03
Runtime: 24 min
Secret (Episode 2)
Air date: 2014-07-03
Runtime: 24 min
Confession Age 1 (Episode 3)
Air date: 2014-09-03
Runtime: 24 min
Confession Age 2 (Episode 4)
Air date: 2014-10-03
Runtime: 24 min
Confession Age 3 (Episode 5)
Air date: 2014-11-01
Runtime: 24 min
Christmas (Episode 6)
Air date: 2014-12-01
Runtime: 24 min
Beginning (Episode 7)
Air date: 2014-12-27
Runtime: 24 min
Name (Episode 8)
Air date: 2014-12-27
Runtime: 24 min
Boyfriend Age 1 (Episode 9)
Air date: 2015-07-03
Runtime: 24 min
Boyfriend Age 2 (Episode 10)
Air date: 2015-09-03
Runtime: 24 min
Boyfriend Age 3 (Episode 11)
Air date: 2015-10-03
Runtime: 24 min
Boyfriend Age 4 (Episode 12)
Air date: 2015-12-01
Runtime: 24 min
