“Let’s go on a trip to a southern island!” That’s what we thought… but then we got shipwrecked on a mysterious deserted island!? And it’s another world!? What the hell is going on~!? We’re the Exploration Club. In a dream, a god asked us for a favor, so we ended up helping revitalize this otherworldly island—Harem Island—turning it into a bustling tourist destination packed with visitors. Exotic plants we’ve never seen before, beautiful older women living on the island… If we work hard, maybe we can really liven this place up. But… “Will we actually be able to go home?” Everything happened so suddenly that we were overwhelmed with anxiety. In my panic, I ended up clinging to the boy I’ve had a one-sided crush on. But I can’t hold these feelings back anymore! I’ve wanted to say it for so long… “I love you!” A club with one guy and three girls drifts across the vast ocean and washes ashore on a southern island where 99% of the population are women—“Harem Island.”

The place we ended up with the seniors was an otherworldly island! Through a series of events we somehow got stuck with revitalizing the island… but before I knew it the seniors were fucking each other and got pregnant! …What the hell is this garbage synopsis? Are all my cute parts completely cut out?! Well, yeah, I wasn’t exactly useful or anything… haaah, I’m feeling so blue… “Please don’t abandon even useless meee!” But! My beloved seniors relied on me! Nfufu~ So from next time I’ll be the main heroine, right~♪ I got so carried away thinking that that I went and failed again… Ugh, I’ve got to make up for this no matter what. That’s right! I’ve got to repay the seniors with my body! Mysterious! The mystery of getting pregnant and giving birth in a single night?! Chiyo: “That’s so unfair! I’m jealous! Hiro-senpai, please do it with me too!”