I think I would have preferred for him to (spoiler)
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figure out on his own that the curse was actually just fear, instead of being told by the mermaid? Or maybe just see more of him working through that fear? Idk, it's hard to put a finger on it, but the ending felt anticlimactic somehow. And the giant turtle just came out of left field lol.
I did really love the leadup though, and the art. The mangaka's other series is a favorite of mine, so I recommend that as well.
Any good stories with brothers that aren't incest, just platonic bother relationship?
https://www.mangago.me/read-manga/gakuen_babysitters/
https://www.mangago.me/read-manga/ootani_san_chi_no_tenshi_sama/
https://www.mangago.me/read-manga/aka_chan_to_boku/
https://www.mangago.me/read-manga/yuzuki_san_chi_no_yon_kyoudai/
https://www.mangago.me/read-manga/halal_food_with_me_and_my_little_brother/
https://www.mangago.me/read-manga/bokura_no_shokutaku/
Manga with a true love triangle, as in A likes B, B likes C, C likes A?
Any combo of genders is fine.
https://www.mangago.me/read-manga/kimi_no_love_wo_misetekure/ (girl A loves boy, boy loves girl B, girl B loves girl A)
https://www.mangago.me/read-manga/i_wish_her_love_could_come_true/ (girl A loves girl B, girl B loves boy, boy loves girl A)
https://www.mangago.me/read-manga/nanashi_no_asterism/ (girl A loves girl B, girl B loves girl C, girl C loves girl A)
https://www.mangago.me/read-manga/savior/ (girl A loves girl B, girl B loves girl C, girl C loves girl A; toxic relationship)
https://www.mangago.me/read-manga/yuri_no_hajimari_ha_dorei_kara/ (girl B loves girl C, girl C loves girl A)
I feel like the author forgot to give the main character any redeeming qualities or character growth