Wait wait wait wait wait!!!!! THIS IS FUNNY AND CUTE! This could have gotten more chapters like seriously it was a good and weird idea I wanna keep reading but sadly it's a oneshot
Chapter title is the same as the story title, but I almost feel like the "I" has switched. It feel like here it's the landlady who regrets it while Koduka-san regrets nothing. Next chapter: all regrets are gone?
You know it's the end when the chapter name is the same as the title...
This is quite interesting
I love how the Mangaka just put some meme references xD
And also, making the prettiest school girl looking the opposite of smart, is the best and most original thing to do!