BL authors Raizo and Shinobu — a.k.a. TOS — have fallen in sweet, steamy, real-life Boys Love! And in the grand tradition of honeymooning gays, it's time to move in together.

When Raizo's sister, Rina, suddenly shows up at their door, Raizo resolves to tell her about his new "roommate," but Shinobu's well-intentioned antics get in the way. Introducing your big sister to your boyfriend is no small thing, even if she is a BL manga fan...! Meanwhile, Shinobu struggles to adapt to living with his rich, successful boyfriend…

After all, how is a garbage larva like him supposed to contribute to their new home life?