Omiai Aite wa Oshiego, Tsuyoki na, Mondaiji.

A 2017 anime based on a 2016 manga of the same name.

Nano Shaikawa is a teacher put in a marriage interview by her parents and the father of her possible future husband. When she meets this man, Souichirou Takamiya, there is something about that man seems familiar. By the time they get on the bed, she finally notices a scar in his arm that gives away his true identity: her problem students Souji Kouga.

Her (and his parents) don't seem to care Kogua changed places with his brother, but Nano tries to resist his charms.


 * Beach Episode: Episode 6 is set on a beach where the main cast spends their vacation.
 * Clark Kenting: The only distinguishable difference between Souji and Souichirou normally are glasses. Nano actually only finally realizes she is with Souji because of a scar on his arm she saw earlier.
 * Making Love in All the Wrong Places: Souji grabs Nano in the middle of the school corridor and has sex with her in an empty classroom.
 * Strong Family Resemblance: Despite being born years apart, Souji and Soichirou look very similar.
 * Teacher-Student Romance: Though the difference of age is apparently not that big.