- Natsumi uses her design from the game Xmas Shooting - Scramble!!, rather than her design from the original Christmas Shooting.
- Natsumi appears in the artwork for and is quoted in the descriptions of and .
- Natsumi, wearing her RPG Costume, is featured as the shopkeeper of the Tavern in Bounty Hunt Mode, where she is known as Innkeeper.
- Innkeeper is quoted in the description of .
- Her first appearance was as the boss of the first stage of Christmas Shooting together with
- Natsumi is one of the six Sweet Gods, alongside . , , and . Her moniker is Sweet Blogger
- The title of Sweet Blogger was once stated to belong to  . However this is probably a joke or retconned later by Hono.
- Natsumi is 15 years old in Xmas Shooting - Scramble!!