A collection of short stories:

1) 10 Days -
High school senior, Aiko, and 30-year-old Shirakawa are to have an arranged marriage, so they decide to try being a couple for 10 days...

2) There's No Logic To Love! -
Mayu can't get over her big shock from being dumped. But then a transfer student came to her class, and...

3) Happy Happy Letter - Aiko is extremely thrilled to receive her first love letter. But the sender didn't include his name...

4) The Prince's Maid - She's only in high school, and having an arranged marriage!? Plus her partner may be rich, but he's her classmate...

5) An Adult's Love / A Child's Affair - Norika is going out with a working man. She's only in high school, but she lied, telling him she's working too...

6) My Sweet Honey - Kimi has fallen in love with the school's "prince", Ken. All she could do was just gaze at him, but he suddenly became her boyfriend!?