Kon'ya, Tsuma ga Chichi ni Dakaremasu... ~Iwabuchi Haruka no Kokuhaku~

Haruka married Takeru who she had always thought of as a younger brother. Once they confessed their feelings to each other, they realized they had been in love for a long time. They got married and were happy, receiving blessings from family and friends. However, her husband got involved in workplace trouble, which caused a ripple in their relationship. As her husband became busier, she spent more time with her father-in-law, leading to an incident one night.