152-centi 62-kilo no Koibito

Mina Morishita is a 23-year-old office lady with a chubby body. From an early age, she was teased by others because of her body shape, and she has never been treated as a “woman” by men. It was Itsuto Tachibana, the most popular guy in the company, who treated Mina as a “girl” for the first time. Mina had some feelings for him, but had given up… until one day when Tachibana propositioned her and slept with her! And after that, Tachibana started doting on Mina all the time!?
(Source: Alphapolis, translated)