OBA-031 The feeling after a mother-son quarrel is too good, incest with Kato Eiko

After her husband's death, Eiko raised her son Hiroshi alone. Although he couldn't be called handsome, Hiroshi was very straightforward and healthy, and Eiko loved him dearly. However, Hiroshi had one flaw… He was 'weak in the mornings.' One day, despite Eiko waking him up, Hiroshi overslept on an important day. This led to a big argument between them. After not speaking for several days... Hiroshi comes to realize Eiko's worth due to a certain incident...