It tells the story of Onodera Machi who was a teacher at the high school she once attended, and a handsome transfer student Chiba Yuuto came to her class.Yuuto is the younger brother of Chiba Yuichi, Machi's first love in high school. He looks almost exactly like Yuichi in high school.
Memories of her first love came to her mind, and she met Yuyi again by chance at a cocktail party.Every time she sees him, she will think of her first love. She gradually cannot take her eyes away from her younger brother Yuuto and her first love Yuichi whom she admired in high school...
Episode 1
Onoderacho (Hirue Iguru), an older female who dated on the precondition of marriage, fell in love with her high school classmate at first sight 10 years ago, which resulted in the "First Love Effect" that she has always been unforgettable about her first love.
One day, the transfer student Yuuto Chiba (Yukiki Yamashita) came to his alma mater high school where he teaches in Onodera Town.Surprisingly, he is the younger brother of Yuichi (Takajo Inukai), Onoderacho's first love, and Onoderacho can't help but be attracted to Yuichi who looks very similar to Yuichi.
In addition, Onodera Town met Yuichi again dramatically at a certain cocktail party...!?
