Don't Leave Me Alone Daisy

It is about a boy named Techno who lived in a bomb shelter most of his life. He and his grandfather are amazingly smart. But one day Techno sees a girl named Hitomi on his yard. He instantly falls in love. He names her Daisy, even though she keeps telling him that's not her name. After 3 months of practice on a robot he decides to get a relationship started with her. But all he can do is stare. Then he decides to get full ownership of her, but she still doesn't really belong to Techno. Along the...