Marina, A Mother Of A Large Family, Is Absorbed In Parenting Sex With Her 8 Beloved Sons, And Her Struggles With Her Large Family. Marina Shiraishi 愛する8人の息子たちと子育てSEXに溺れる、大家族‘近親相姦’性活 とある大家族の母茉莉奈さんの奮闘記―。 白石茉莉奈