that's it
it's more chunii than actual chunii (since this is made by adult)
if author want's some hentai, then make one, everything just doesnt make sense anymore. even actual H manga had more story than this. while those can makes me "saiyan", this manga cant (even with the ecchi)
by now, just think of this as tits and gurls. story? just throw it in a dumpster or something