Gibo nozoki: Tsumasaki ni shita karamasete

義母覗き 爪先に舌絡ませて

Also known as Peeking at Mother-in-Law: On Tiptoe with Tongue's Entwined

Miwa, who lost her husband, remarries Kurata—her late husband's former boss, who had always looked out for her. Kurata has two children from his previous marriage, and Miwa begins a new life while trying to build a relationship with them. However, one day, Kurata suddenly collapses...