For our next few entries, we are looking at characters that I don't like anymore, I find that over time, characters can easily fall out of favour as your tastes mature, it'll make more sense as it goes along and were starting with Naru.

Naru is the worst kept secret of Love Hina's plot, being Keitaro's promised girl and the fact that Ken Akamatsu styles Naru on his own wife makes her the only choice.
While I figured that Naru had a lot to offer to begin with especially when Keitaro was quite the sorry excuse for a male, it really flips things over when you read through the manga that Naru is actually horribly insecure and Keitaro actually grew to be respectable.
Naru's romanticized view of meeting her promised man at Tokyo University burned out her vision and she even failed to pass first time, the more Naru was called out, the worse she got, even after beating the spirits of Hinata House to confess to Keitaro and literally french him on the beach they landed on, the final book just threw in another spanner instead of end by dragging out Naru's insecurities to it's maximum.
Looking back, Naru just made Love Hina drag for so long and robbed us of an awesome love confession ending.