One day, my father suddenly says to me, “I think you’ll need your mother, Keita.” My mother passed away when I was a kid. I was sad at first, but I somehow managed to accept it. But why now…? Anyway, my father brings four ladies in front of me and says, “The girl who goes with you the best will become your mother. You live with them for a while and score them.” I don’t need my mother anymore, so I just give them low scores. Like this, I start living together with four ladies… (Source: Himeya Shop)

The main character is a white-collar worker. He has a wife, but she runs away from home. When he is at a loss what to do, Sayuri, his wife’s mother, reaches out for him, “I’ll replace her… Please…” As he lives with her, he gradually falls in love with her, and so does she… (Source: VNDB)

What happens when a big-breasted mother and her equally-endowed daughter want to fight over the same guy? Thanks to hentai authors Blue Gale (SPOTLIGHT / PUNISHMENT) and Producers Shiyuuta Biwajima and Chikara Niki (SEX WARD / GIRL NEXT DOOR / HOOLIGAN), you’re about to find out! The Battle of the Busts! Yusuke has a problem – the kind of problem any guy would love to have. You see, there’s this girl named Reina, who wants him to be her “private tutor”… oh, and she just happens to have gigantic breasts. Huge, massive, watermelon-sized gazongas that taste sweet and are as soft as marshmallows. So, what could Yusuke’s problem possibly be? Well, when he goes to Reina’s house to give her “lessons”, he has a run-in with Reina’s mom. And boy, is her mom ever stacked. Those triple-F-cup beauties are even bigger than Reina’s! Plus, she’s got the whole “sexual mid-life crisis” going on… she pours it on hot and heavy, and really wants Yusuke to take her for a ride. Still not seeing the problem? Well each of these lovely ladies wants Yusuke for her own, so when mom catches Yusuke and Reina in the act, the fight is on -and Yusuke’s trapped in the middle! Those two may be mother and daughter, but when it comes to winning Yusuke, they’ll go to any length to prove their sexual skill! Good luck ladies, and may the best boobs win! (Source: AniDB)

Mie happened to pick up medicine that an old man dropped. When he took the medicine, his figure disappeared. Soon he went to a public bath to peep, and began to molest. Then, he went to an all-girls school. (Source: AnimeNfo)

Professor Kayama could have been happy with his job, except that all of the students on campus hate him…and he hates them. Miki Watase is a dark-haired vixen will do anything to raise her grades, but when Professor Kayama refuses play along, she’s determined to have revenge. She gathers her friends – the luscious Hinata, the slutty Arisa, and the beautiful but timid Sachie – and they mix drug- laced alcohol with a snap-shot camera to publicly humiliate Kayama. However, these vivacious little co-eds are about to discover that even a wimpy professor like Kayama has his limits. Now he’s going to teach them a real lesson in humility that will have them each begging for forgiveness. (Source: AniDB)