 If you liked
Umi ga Kikoeru
|
 ...then you might like
Toradora!
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Ocean Waves has a more mild and believable Tsundere lead who ropes in a similarly earnest guy, with the same context of high school melodrama and family problems. While these essential elements are the same, the plot and the characters are aimed at a completely different target audience.
It's not a sure bet that Ocean Waves will be to your liking just because you enjoyed Toradora, but it provides an interesting and more realistic look at a tsundere romance that's worth checking out.