My Second First Love, Made Sweet with Condensed Milk

Mao had liked Rinko, her best friend since elementary school. But at that time, she didn't realize it was love. After moving to Tokyo, she had grown distant from Rinko, when one day an email arrived saying "I'm getting married." It was only then that Mao finally realized that Rinko had been the object of her first love. Gathering her courage, Mao calls Rinko, and they reminisce about fond memories from the past. Then suddenly, Rinko confesses that actually, long ago, she had liked Mao. Hearing this, Mao is deeply shaken. Unable to tell her that she also liked her, Mao hangs up the phone. Intense regret overwhelms her—thinking that if she had only told Rinko how she felt back then, maybe she could be by her side right now. She loses her footing on the pedestrian bridge and falls down the stairs. And then, Mao time-slips into the past. When she comes to, she has returned to her high school days, when she was always together with her first love, Rinko. In order to fulfill her second chance at first love, Mao confesses her feelings to Rinko. A love story between Mao, who has time-slipped back to the past with the body of a high school girl but the mind of someone in her late thirties, and Rinko, her childhood friend who doesn't know about any of this. This work is also posted on "pixiv."