https://www.dlsite.com/maniax/work/=/product_id/RJ170819.html

Fifth batch from DLsite’s 2020 Summer Sale.
This one’s all Blue Metal. They had Precure stuff that I could not let slide.

Plot is that protag's sister goes into heat for him after he starts banging her best friend. Lucky bas^@#$.
Name of the folder is imouto2 which presumably just means it's a little-sister themed work and that's the extent of its relation to his last one: https://e-hentai.org/g/802954/333e91bfee/

Sole Male tag is technically wrong since the very first scene is a different guy from the rest

Base +6

Cool, good catch. It was just me voting on that so no damage done.

Base +13

女友的哥哥有存在的必要吗？加进来完全隔应人，主角妹妹第一次被女友的哥哥上了，女友也早被他上了，后面完全不出场，主角把妹妹以及妹妹男友的妹妹肚子搞大了，女友哥哥拿了女友和主角妹妹第一次，主角把女友和妹妹肚子搞大，到底谁更亏一点？

Base +7, 泉水小夜 +23, bnm123 -7