Maiku Kamishiro has a problem. Actually, make that two problems. He has two young girls boarding at his house, each claiming that they're his long-lost twin sister! Which one is Maiku's sister? Which one is a total stranger?

Onegai☆Twins was published in English by ComicsOne on July 17, 2006. It was also released in Brazilian Portuguese by Editora JBC in two volumes from June 2008 to July 2008.