- Alternative Character Interpretation: Most notably done to Tsukasa.
- Complete Monster: Kuroi. Any sympathy you may have for her will vanish when you learn that the gunshot wound she inflicted on Tsukasa was an explosive round that left her infertile and crippled.
- Moral Event Horizon: Nanako Kuroi, when she killed Soujirou and infertilised Tsukasa.
- Nightmare Fuel: The setting is Fallout...so yeah. Especially just before Kuroi's death. Bet you never thought HONF and Lucky Star could ever appear on the same page, eh?
- The Woobie: Tsukasa.