The manga contains a total of 7 mostly unrelated oneshots.
First story:
It's been 3 months since university student Arata confessed his love to Yamato and got a quick "Okay" as a response.
He couldn't be happier, right? If it wasn't for the fact that Yamato seems to hate Arata's advances. He doesn't like being kissed at all!
Why did Yamato say yes in the first place if he acts like this?