ママハハは息子を愛してる！ ～お母さんに甘えていいのよ…倫子ママのエッチなお世話事情～

The heroine, Kurata Rinko, lives with her son, Shizuya.

Shizuya is the child of her late husband, and even though she is not blood-related to him, she thinks of him and loves him like her own son.

But one day, she finds in his room, a naughty book about incest...!?

[Translated and edited from Getchu]