We've got six stories about sports girls having sex: the boxer (ch. 1-4), the swimmer (ch. 5-8), the biker (ch. 9-12), the runner (ch. 13-16), the two wrestlers (ch. 17-22), and the gymnast (ch. 23-27). All of them involve the first time sexual encounter between a couple (or triad), with most of them having the characters express an interest in each other for the first time immediately before the sex (with the runner story being the only exception to that). All of the men in the stories also engage in the sport in question and the sexual encounters occur in a public place related to that sport, often with the men being called aside. They each have the woman initiate the encounter and be dominant to varying degrees (with the sole exception being the runner story, again). A few of them include some sort of competitive aspect to the sex. Other than that, I assume fit women in sports gear was the point of attraction the author was aiming at.
I thought 23 chapters was short for a single storyline, now i just read 28 chapters with 6 different story lines, one word: well. I will say the second half will contain spoilers so read at your own risk.
First grouping is about a new trainee and star fighter sparring and she gets "hot" from the sparring. It's a classic hentai scene of pheromones affecting sexuality between two people on the wavelength of tsundere. The second one is about childhood friends again along the small hentai side. Third time is another tsundere friendship that blossoms into love. The Fourth story is about BF/GF trying to get intimate but she nervous about her body(boring). The Fifth is about childhood rivals and Harem-esque things happening. The last(sixth) story is damn near a copy past of #2 except instead of a pool it's gymnastics. Not really good, too much BS not enough story. Not even worth the read, if you want it should take about 30-45 mins at most.