Second generation NTR house: Wife slept with by son-in-law ROE-271

After our daughter Miu got married, she lived in an apartment, but we converted the house into a two-family home so she could live with us. Having my precious daughter by my side is enough for me as a filial daughter. My son-in-law, Shinji, is also very honest, and his wife, Megumi, likes him very much. But I never expected such a humiliating thing to happen... Megumi seems to be lustful about the couple's sex life. Shinji discovered this as well. So, Megumi started going to our daughter's house uncomfortably, telling obviously lies... I sensed something was wrong, so I followed my wife...