Season 1
Nagi is the local deity spirit of the town of Kannagi and she was able to take a physical form when Jin Mikuriya carved a wooden statue of her out of a block of wood from the sacred tree of his family shrine. Nagi's mission is to cleanse the impurities that plague the land, but since her sacred tree has been cut down, she can only do this with Jin's help. While pursuing an impurity, Nagi is reunited with her sister, Zange, who happens to have converted to Catholicism. Zange's power is greater than Nagi's due to her sacred tree still being in tact and becoming a local celebrity taking confessions on the street at night. The only way for Nagi to regain her power is to gather her own followers and gain popularity.
The Shrine Girl
When Jin Mikuriya uses the trunk of a sacred tree to carve a statue for a school project, he accidentally summons a guardian deity named Nagi.
Gyokuon Attack!
When Jin gets a surprise visit from his classmate and friend Tsugumi Aoba, Nagi fabricates a story explaining her living with Jin. Later, Nagi flees the house after an argument with Jin and finds herself in danger when trying to cleanse a impurity on her own.
The School's Goddess
When Nagi secretly infiltrates Jin's school to search for an impurity, she stumbles upon a mysterious girl.
Sisters
Nagi is thinking of being an idol in order to gain followers since her powers are going to be reduced by the tree being cut down. Jin encounters a famous idol who turns out to be Nagi's goddess sister.
Revelation! Love the Spirits of the Dining Table
Zange tries to seduce Jin and challenges Tsugumi and Nagi to a cooking contest. Meanwhile, Nagi is becoming so popular with the students at school, the teachers find out she is not actually enrolled.
Nagi's Heart-Beating Craziness
When Nagi decides to get a parttime job at a maid café where Tsugumi is also working by request of a friend, she is surprised by Jin and his fellow clubmates from the art club.
Cutie Big Pinch! The Super Spicy Hitsumabushi Strikes Back
When Nagi shuts herself into Jin's closet and refuses to come out, Jin calls Meguru for help.
The Hill of Straying Storm
During a stormy night, Daitetsu stays over at Jin's house, where he wonders about Jin and Nagi's feelings for each other.
Embarassing School Comedy
When rumors about the Daitetsu and Jin being a homosexual couple start to spread, Zange decides that the best solution to the problem is for Jin to officially date a girl.
Karaoke Warrior Mike Takako
When the Art Club, Nagi and Zange are having a karaoke party, Tsugumi, Jin, and Zange's relationship complications quickly make the session extremely awkward.
Yet, Uncertain
Jin demands that Nagi tells him more about herself, her reasons for staying in Jin's home and the occurrence of impurities in the village. After she refuses and runs away, Jin discusses the matter with Reiri Suzushiro.
Truly Ephemeral
When Jin arrives at home and he finds that Nagi is nowhere to be found, he keeps looking for her without success.
Jin, Lovestruck
Tsugumi persuades Jin to search for Nagi again with the help of the school's blog.