2026 marks Kodansha’s 10th year on BookWalker\! To celebrate this incredible milestone, we’re offering 20% Coin Back on a wide selection of Kodansha titles.
But wait… There’s more to the anniversary\! Visit the [**Event Page**](https://bookwalker.com/ex/kodansha-10th-anniversary) to see all offers.
Ends September 14, 2026 at 11:59 PM PDT
Yumiko moonlights as a call girl because her day job doesn't pay enough to feed her pet Croc. Haru an aspiring writer who has nothing to say, sleeps with a woman his mother's age not just for the money but to work on his ""powers of observation"". So when Yumi's step-mom turns out to be Haru's sugar-mommy, it is time for shenanigans. A little bit of drinking, a little bit of blackmail and a visit with Croc is enough to change lives and maybe add some color to a comfortable but bland life. Daddy kept Keiko's mom as a pet; she keeps Haru as a pet; I keep Croc as a pet...Is Yumiko someone else's pet?? Is she willing to let someone care for her like that?
