Carolling: Christmas no Kiseki S01E02 - 'True feelings'

Shuko (Yuka) was accused by Shunsuke (Takahiro Miura) of having Kohei (Fuku Suzuki) meet her father in her separation, and she was depressed. Her unseen president, Hideyo (Yoshiko Nakada), tells Shuko that Shunsuke has been isolated from her parents since her parents divorced when she was young. Shunsuke happens to read a note that Kohei has forgotten and finds out that he was responsible for the divorce of his parents. She tries to apologize that she didn't notice Shunsuke's anguish when she was dating, but Shunsuke makes her surprising suggestion to Shuko.