Manga: Studio Apartment, Good Lighting, Angel Included, Vol. 4

Manga: Studio Apartment, Good Lighting, Angel Included, Vol. 4 

Disaster strikes when Shintaro and Towa's air conditioner breaks down!

 But just as they're about to faint from the sweltering heat, Lilishka invites them to a summer retreat, courtesy of the Occult Research Club.

 Looks like the crew will be staying at a vacation home owned by Hisui's family, so why do they need to take a helicopter...?!