Like-minded people are drawn to each other; some get lucky, others don"t. The 18‑year‑old Tsukimi Kurasite was fortunate – a talented artist, but an overly modest and restrained creature, and also a fan of jellyfish. She came to conquer Tokyo not for nothing but to the profitable "House of Rainwater," where only oddities and female otaku live. And it doesn"t matter whether you"re a train aficionado or a Three Kingdoms fan – all residents respect their neighbors and their hobbies, feeling the spiritual kinship that unites them, protects them, and, alas… separates them from the rest of the world where proper, fashionable, well‑dressed men and women live. No wonder the House"s residents call their modest abode a "monastery" and themselves "nuns." Tsukimi may not lead the life of a hikikomori recluse like her manga‑artist neighbor, but she rarely goes out into the world, except to exhibitions of beloved marine creatures. In one such expedition, the heroine enters an unequal battle to save her talisman, a spotted jellyfish named Kurara, who would have lost if not for the mysterious and stylish beauty nearby. In the euphoria of rescuing her beloved, Tsukimi invites a new acquaintance home without even asking for their name. While the girls were busy with pleasant chores, she fell asleep, and in the morning it turned out that one of them… was not even a girl. So what? In the House of Rainwater, everyone with oddities will accept help and advice from a guy, only if he is at least somewhat a "co‑sufferer."