Ijou Chitai Jikken Dorei妹異常痴態 実験奴隷

When Konna Azusa's parents passed away, they left her an apartment building which she has been taking care of, however things didn't go well and she has only one remaining tenant, Moriyama-san. If the last tenant also left, all memories of the apartment will disappear, the memories of her parents..she cannot let that happen. For that she swears to do anything in exchange for Moriyama-san to not leave the apartment, yes, even becoming her slutty sex slave!