Makoto Kurumizawa

Makoto is the epitome of a girl-obsessed guy who keeps an electronic database of almost all the girls at Otowa-no-Mori with him (to a point of bribing some informers to get the scoop). He even uses computer dating simulators and guide books. (Actually, he's terribly shy and can't do anything in decisive situations.) He is also the only techno-geek in the group. After he botched his date with Erika Kawai, he ended up with her best friend (who acted as the bridge between them), Yumi Kazama. He also had an interlude with a nursing intern after getting hospitalized for peeping at a short-skirted girl as she climbed an overpass. His scooter hitting a mini-truck, but he forgot about her when he saw that girl again...

(Source: Wikipedia)