The episode begins with Nasa trying to better understand his wife. In a quirky act of devotion, he turns to shoujo manga for guidance. Nasa's difficulty in saying "I love you" to Tsukasa introduces an interesting aspect of their relationship. Despite being married, their experiences resemble those of a couple in the early stages of dating, highlighting the unique circumstances of their marriage.

Tsukasa brings a dash of playful energy into the mix, effortlessly charming and teasing Nasa throughout the episode. Her carefree approach to their relationship starkly contrasts with Nasa's earnest efforts to navigate their romance, creating an intriguing dynamic.

As expected in "Tonikaku Kawaii," the episode gradually ramps up the romantic tension. Although they share a household, their interactions are marked by blushing shyness and modesty. Nevertheless, the couple manages to make progress during their shared bath and sauna scene.

The episode ends with a humorous mishap as Ginga accidentally addresses Kaname's sister, interrupting Nasa and Tsukasa in their intimate moment.