
Shota, a shut-in, only opens up to his friend Terumasa. When Terumasa brings his sister Rina over, Shota becomes obsessed with her massive breasts and starts teasing her. Though she resists at first, Rina eventually gives in, thinking it might help Shota feel better.




















The content is fine, but the actress's look and the bathroom scene weren't really my cup of tea.
*Rina Okazawa's big breasts were wonderful. Not only the size but also the softness is exquisite! It's like discovering a new species. The camera angle that zooms in on the bouncing breasts in the H scene is also nice. It's a pity that the number of times of sex was small!
Starts with a masturbation scene, then a bath with two kids. One comes out first, fondles her breasts, and penetrates. Ejaculates on her chest. While the three are sleeping together, they mess around, leading to penetration and a creampie. The second half is breast fondling and cowgirl position. Ends with a POV erotic handjob/titjob. It really loses steam in the second half. Once they got to the creampie, it could have escalated much more.
It's a series, and while they've been making an effort lately by adding double casting and gyaru characters, the content and structure are the same as always (lol). The concept itself fits Rina Okazawa's character well, and those top-tier massive breasts are definitely worth a look. However, I don't think it was necessary to force her into an 'erotic older sister' persona. The play was good, and if she had just stayed as her usual down-to-earth self, I might have given it a perfect score.
Her breasts are big, but the brown nipples were a letdown. Still, it was plenty erotic. The bath scene made a comeback after a long time, which was super exciting. It's a shame it ended with just oral and breast sex; I really wanted to see some passionate intercourse at the end. Please include a lovey-dovey scene for the finale next time. If it had that, it would've been 5 stars.