We Three Twins
Miina runs away, but returns to the school without a word. After Karen talks to her, Miina goes to the train station. Maiku runs over there and they let their feelings out with a climactic kiss. In the end the episode shows that their relationship with each other remains the same.
Aired 14/10/2003EP 12 - We Three Twins
Please☆Twins!
Maiku Kamishiro's past has always been somewhat of a mystery to him. The only clue he has to who is family might be is an old photograph showing two young children, a boy and a girl, playing in a small pool outside of a blue house. In an attempt to find his family, he moves to this blue house and begins working as a programmer. He's living a comfortable life until the day two very different girls show up at his door, both in possession of the same photograph, and both claiming to be his twin. With no way to prove who is a relative and who is a stranger, Maiku allows both girls to move in with him until they know for sure.
(Source: Anime News Network)