Studio Apartment, Good Lighting, Angel Included manga volume 6 features story and art by matoba.

It's been a year since Shintarou and Towa met! The two celebrate their anniversary as Shintarou reflects on their time together—he's gotten used to Towa being by his side, and he expects such days to continue as always. But the very next morning, Shintarou wakes up to find…two Towas?! The sudden arrival turns their everyday lives upside down!