Happy of the End — Season 1

Chihiro chooses to not leave Keito despite getting beat up by him.

As they get closer, Keito reveals his past and real name to Chihiro.

Chihiro and Shunichi reconnect, and Keito decides to keep an eye on them when he finds out.

Keito has lived a rough and unstable life since he was a child, but he unexpectedly reunites with his mother when he grows up.

After Keito's mother passes away, Chihiro stays by Keito's side and accompanies him through his grief.

Keito runs into someone he had no desire to meet, and Chihiro gets involved in the dispute.

Chihiro gets kidnapped by Maya, and after being rescued, Keito decides to do the right thing.

The pair originally promised to run away together, but at the last moment, Keito decides to leave Chihiro behind.