Please! Twins

Three high school kids named Maiku Kamishiro, Karen Onodera, and Miina Miyafuji are the subjects of the story Please Twins! A picture of each person's childhood home brought the three together, and they later went in search of the house in the picture. The image, however, just features a boy and a girl. The three draw the conclusion that only one of the girls, Karen or Miina, can be Maiku's relative. The other person has to be an outsider. The only other distinguishing characteristic of the couple in the image is that the guy and the girl both have eyes that are an unusually similar hue, which adds to the confusion because all three of them have the same eye color. The male lead, Maiku, is mostly worried with the fact that, although eventually growing to care for both girls, he is unsure of which of them is his sister. In addition, the two ladies start to feel things for Maiku, creating a love triangle that won't end until their relationship's reality is revealed. All three of the main protagonists are torn between wanting to learn more about their pasts and not wanting to risk ending a romantic connection.