Kana Saeki is a young woman with a lot on her mind. She has to deal with her fiancé Kaoru who's been flaking on her lately, her boss who seems to be piling more work on her desk, and the security guard who seems more than a little friendly towards her. On her way home from work one night, she finds a new café where she befriends the barista and his handsome young grandson.
Shall We Date?: Can't Say No includes:
- Ascended Extra: In Kaoru's Normal Ending, Leo, the barista's grandson, will be Kana's secret lover.
- Love Triangle: In every route, Kana will have Kaoru and another man involved.
- Microtransactions: The prologue is a free download, with each character's story sold individually.
- Multiple Endings: There are three endings available: Normal, Happy and Sweet.
- Your Cheating Heart: Central to the themes of the game.
- The protagonist at least has the option to cheat in every route, and will unavoidably cheat during Subaru or Akira's routes.
- Akira is married, and in his route the protagonist becomes the "other woman." In his Happy Ending, he leaves his wife and proposes to the protagonist, who privately wonders about the likelihood that he'll cheat on her with someone else in the future even as she accepts. In his Normal Ending, they continue their affair.