30 Kin Sore wa 30-sai Miman Okotowari no Koi / 30 Ban ~It’s a love that is refused when under 30 years old~ / 30禁 それは30歳未満お断りの恋。 (2020)

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At 30 years old, Moriyama Shino has a fulfilling job but no love life. She wants to date and get married to someone the same age as her. However, one day, she gets confessed to by Sato Mayuki, a man 9 years younger than her. Surprised but impressed by his straightforward confession, she agrees to date him until she finds a marriage partner.