Yabai! Fukushuu Yami Site

Based on the erotic game by Waffle. Tezuka Ryou recently lost everything: his sister whom he loved intimately, his father due to a fire at his house and now in depression he seeks revenge on the people who caused him all this trouble. He kidnaps the 3 girls that bullied his sister into committing suicide. He then starts to torture them by raping them and live streaming it all so when they confess, the whole world can see it. (Source: Visual Novel Database)

Nee SUMMER!

Based on the erotic game by Artemis. Yuuta Yamauchi is an average high school student preparing for exams through his summer vacation. His older cousin Kei Higashide, who takes pity on him as her "little brother," devotes her time and patience to tutor this relative in need. One day, Yuuta manages to take a photo of his classmate and crush, Youko Kaji, as a gust of wind lifts her skirt. When Kei finds out about it, she laughs at Yuuta's juvenile infatuation and starts teasing him about his sexual preferences. From words to deeds, she offers him her own grown-up body—and Yuuta quickly takes advantage of the opportunity. As summer passes on and the relatives start enjoying more time together, their initially bland tutoring sessions soon turn into a passionate and fiery relationship. (Source: MAL Rewrite)

Mako-chan Kaihatsu Nikki

The heroine this time is Makoto, a pretty average, if not well-endowed girl. The story starts with her getting confessed to during a sunset. She accepts the confession, but things don’t progress past a kiss that evening. Her newly appointed boyfriend walks her home, where we’re shown her adoptive brother looking at them from his window with an evil grin. (Source: Fakku!) Note: A demo was available to the players of RPG browser game Aku no Onna Kanbu: Perigee New Moon (悪の女幹部ペリジーニュームーン) on May 6, 2021.</i>