A new tenant is moving into Onodera's aparment where Haru and Ren used to live, and Ren is helping to clean the room. The man who appears with Onodera is Takamura, the school nurse at Ren's high school. Meanwhile, a female customer begins showing up at cafe WHITE FANG practically every day to talk to Haru. Aki and Shima realize she's the girl from the marriage meeting photo, but...?
Tooth decay can spread to 
other people through a kiss.
Du kannst andere Leute
mit deinem Karies anstecken.
Puedes infectarme
con tus caries si me besas.
Quando hai una carie,
puoi infettare gli altri baciandoli.
Você pode infectar os outros 
 com cáries se você os beija.