This Heartbeat

Mika is a fresh high school student who starts texting a mysterious boy. She is shocked when he reveals who he is - Hiro, a delinquent attending her school. What she doesn't know is that Hiro isn't as bad as he seems.

When a hopelessly romantic high school senior falls for a mysterious new classmate, it sets them both on an unexpected journey that teaches them about love, loss, and most importantly themselves.

Kogure Nao is a shy and cute high school student. One day, Onise Taiga asks her "would you like to date with me on the promise that we will get married?" Nao is unable to turn down his proposal because she is scared of him. Taiga has red hair and piercing eyes. His appearance gives off the impression that he is a bad boy, but he is actually considerate to others and good at cooking. After getting to know Taiga, Nao begins to have feelings for him.

A spark of attraction smolders, then ignites, between two teens from different high schools who meet by chance at a party.

A pair of former high school sweethearts reunite after many years when they return to visit their small hometown.