Mochinchi's art look so similar to the original....
i bet Suzuki Kenya came up with the idea by reading that other Doujin by Nanashi
And Watanabe Shimizu definitely take the cake for this Anthology.
Suzuki didn't just "come up" with that idea. Those are literally the exact same guys in the exact same pose from nanashi's hentai. (The class rep strips but no one gets raped or anything)