1. Oyasuminasai (オヤスミナサイ) 
2. Fukurami Kake na Shoujo no Ehon (ふくらみかけな少女の絵本) 
3. Meikkousei na Shoujo no Ehon (姪っこうせいな少女の絵本) 
4. Meikkousei na Shoujo no Ehon After (姪っこうせいな少女の絵本アフター) 
5. Shimaidon Itadakimasu (姉妹丼いただきます) 
6. Oyakodonburi Itadakimasu (親子丼いただきます)

Note: Released at Sunshine Creation 2017 Summer

The protagonist goes on a date with his niece, a high school girl.
 
(Source: Melonbooks, translated)

Note: A live-action AV adaptation (MIMK-105) was released on August 12th, 2022.

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