The runtime is too short, and the camera work is not good. Looking at the series as a whole, the love for the younger brother is not as prominent as in the previous Ayana Rina version. Based on the script and direction of the Kitano Mina version, it gives the impression of adding a hint of the sense of immorality unique to incest found in the Tono Miho version and the thrill of the pseudo-relationship of a contract mistress.
Ito Sara was in very good condition, showing stable acting in both the drama parts and the sex scenes, so I could immerse myself in the work with peace of mind. The male actor was not a familiar face, but his acting tempo and movements during the scenes were not bad, and I was able to get into the story without discomfort.
The direction where the older sister, excited by her younger brother's morning erection, changes into a sexy outfit with an open chest during a home drinking party and exudes a horny atmosphere as if expecting something was excellent. Also, the story flow from a flat sibling relationship, through a friends-with-benefits relationship under the name of a contract mistress, to the development of love to the point where she wouldn't mind getting pregnant with her younger brother's child, felt natural and not bad.
However, personally, I really liked the bath scene in the Tono Miho version that depicted the awakening of forbidden pleasure and sense of immorality from being inseminated deep into the womb by her biological younger brother, and the erotic costumes in the latter half of the sex scenes that emphasized the sex-slave-like contract mistress feeling. The fact that these elements were not carried over and the runtime was shortened is clearly unsatisfying. The ending that carefully depicted the change in the sibling relationship was also cut. While I can understand the intention of cost reduction, what was lost as a work is too great.
I cannot agree with the idea of judging scenes that create "timing" and "lingering aftertaste" in the drama as "waste" and omitting them, so my evaluation inevitably becomes strict. I don't want the manufacturer to do something that denies the direction they have carefully built up so far.
In the latter half of the sex scenes, the camera work where the actress's face is turned away as she reaches the finish was terrible. If they think this is good while filming, I have to say they lack respect for the actress. There is no fault with the performers, but as a series work, it is definitely close to the bottom.