S1E2 — The Flavor of a Sun-Kissed Gyaru's Lips
Chuhai Lips: Canned Flavor of Married Women — Season 1, Episode 2.

On a midsummer's day, Tsuyoshi heads to the convenience store to get chuhai, and reunites with Ai Natsuno, his junior from high school. Ai is now married, with a huge makeover as a sun-kissed gyaru, but acts like a spoiled child around Tsuyoshi, just like she used to.
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