Similar whimsical vibes, emphasis on differences in communication
Same actor plays male lead
Nice romance with good chemistry

The stories seem similar in a everyday-lives-of-a-small-town kind of way, and they both have mysteries to solve in the town. LINK is a little darker than Summer Strike, but both have good romance.

They're both quite simple, more dreamy romances with a school setting or workplace setting that only focusses on the 2 characters. The characters themselves are quite similar and have a similar relationship dynamic, so Ameiro Paradox seemed like an aged-up version to me, like a workplace au.