Don't Leave Me Alone Daisy

The similarities of these series is stunning. There are whizzkids who create their own androids and have a crush on a girl in both series. The main difference is that the main character is somewhat underdeveloped in My Dear Marie as opposed to Misutenaide Daisy

Quick, name two 1990s-era series about mecha otaku who are inexperienced with girls? Hiroshi Karigari of Boku no Marie is older than Daisy's Reijiro Tekuno ("Techno"), and seems to have more of a life, but both are guys who clearly have let their left brain take complete control; what they both need is a little female companionship to take the scientific edge off. While Karigari builds Marie-chan, the perfect woman in robotic form, Techno chooses a somewhat easier path and finds a human classmate whom he places on a sky-high virtual pedestal and renames "Daisy" (much to her chagrin). The two series then diverge, with Boku no Marie verging into Marie-chan's inner life and the nature of her feelings towards Karigari, while Don't Leave Me Alone Daisy spends more time exploring how Techno came to be a technologically-advanced shut-in. Still, there's enough of an overlap that those who like one title will like the other.