One day, high schooler Hoshina Shuuji, who can sense peoples' feelings through his ordinary five senses, accidentally sees the popular Ayachi Nene masturbating in the school library. Nene is a member of the Occult Club, and commonly offers her classmates advice through fortune-telling. When Shuuji goes to apologize to her, he learns two things: the Occult Club is going to be closed due to lack of members, and Nene is actually a witch that is collecting 'soul fragments' that come from strong emotions. After he accidentally absorbs her collection of soul fragments, he decides to join her club, help her collect more, and try to find a way to give back the ones he took.

The story follows Erina's route in the Dracu-Riot game. Erina is a foreign vampire from Russia and she is very ecchi, her conversations often involve ecchi stuff which makes Azusa really edgy and Yuuto nervous.

The town of Hoori lies deep in the middle of the mountains, inaccessible by rail. Since there isn’t much interaction with its surroundings, the town seems like it is stuck in the past. However, it is because of this exact olden feel and subsequent development that it has turned into a nice hot-springs town for tourists. One of the popular sightseeing spots is the sacred sword Murasamemaru, embedded in a stone. No one has been able to pull it out… until Masaomi somehow broke it in half. He has to take responsibility for his actions by “Marrying” the ‘shrine maiden’ Yoshino. Masaomi was perplexed at the unexpected turn of events, but this is only just the beginning. What lies ahead for him is a much more peculiar and mysterious life, including his new fiancee, a mysterious girl who only he could touch, and the secret behind the curse that remains on the town. What will become of Masaomi’s love amidst his rapidly changing life? The answer lies within the Murasamemaru in his hands.

A new teacher finds himself a newly appointed position as a teacher at an all girls school… on an island… in the sky! How will he make do in his new surroundings? Or the residents of this island who seem like they came from another world? And what's more, how will he fare at being a teacher?

To cure his persistent virginity, Yuuto Mutsura joins his friend Naota in a trip to Aqua Eden, the "City-by-the-Sea", where brothels are allowed. Before he has a chance to become man, he is separated from his friend and accidentally turned into a vampire! Now forbidden to leave the city and forced to participate in a Public Morals task force with several beauties, how will Yuuto handle this new life?