Tomomitsu, a father-in-law who lives alone, came to Tokyo and stayed at the house for a while. His wife, Yuka, a former student of Tomomitsu's, welcomed him and her husband, but was suspicious of her father-in-law's sudden visit. After a while, Tomomitsu, who saw a resemblance of his late wife in her, confessed a certain truth to Yuka... Yuka sympathized with him and, wanting to fill even a little of the void in his Kokoro, took his throbbing cock into her mouth. However, since then, Tomomitsu had not made a move on her, so Yuka placed her lips on him...