It's okay. Cute, even.
Edit: Harukiyo's character had a lot of overused uke cliches. Looks tough like a delinquent but is shy. Guess I expected more from something so high rated? Somewhat boring. Both relationship and the plot. Nothing bad about it. But nothing special either. It was okay. Very happy about the lack of noncon, though 4.4*
Hoshi to Harinezumi