I gathered here four works by the eromangaka Umeran (circle Umenonukaduke):
– Mania Momoko
– Mania Shimizu
– Mania W
They are parodies of Major, a Japanese series about teenagers playing baseball. The pornification begins when a widowed mother (“Momoko”) accidentally makes her son aroused as he catches her masturbating, soon after they’re having sex; then two buddies of the son join in the next volume, after this a new girl (“Shimizu”, looking more 25 than 35) becomes the MC, and in the last volume it’s group sex between boys and the two women.
The scenario is plain and worthless in my biased opinion, but on the other hand I’ll heartily praise the drawings. Full of energy, very little censorship, lots of quality butts, nice huge breasts, braids (pubic hair warning, though)… Yep, these are good materials
Rozett, Notnoob, BagelsTheKraken, Mudjoe2 and FlatJustice, from AllTheFallen, and Doujin-Moe, are behind those releases, thank you!
Side note: almost the same cover, different mangaka, I believe Mojer Second is worth a look…