Breathless Summer - Season 1 Episode 7 Night of Tragedy

Ayukawa pays a visit to Rei's house to tell her that he is her dad. Yoko whilst trying to stop Ayukawa from spilling the truth has stabbed her dad. All of the family members are brought to the police station for investigation purposes. Rei is asked to leave work earlier the next day due to the rumor. Her life starts to get affected by the rumor. Yoko finally tells Rei the truth behind her birth and Rei decides to conduct a DNA test to ascertain her relationship with Ayukawa.