You can never enjoy a manga like this, but the story is unquestionably unique so I can give it props for originality but if you can't stomach physical and mental abuse or psychological torture then don't even give this manga the chance because you're going to hate it. But if you're open minded and willing to separate your personal emotions from lots of abuse that takes place in this manga, then it will be a great read about abusive relationships.

This story follows the relationship between 2 high schoolers Hina and Airi aka Ai-chan, former childhood best friends who seem to not be as close now that they're in high school. The story starts off innocent, the 2 girls are in different friend groups but are aware of each other, either catching glimpses of one another or innocently touching when no-one is looking. Later you find out the 2 girls were still close actually a lot more closer than the reader and everyone around them thought they were. They were secretly in a sadistic relationship where Airi seem to derive pleasure and sexual gratification from humiliating and inflicting pain on Hina and Hina not wanting to be apart from Airi allows her to do as she pleases but what Airi later fails to see was she was grooming Hina into enjoying it so begins this abusive relationship.

At first you're lead to believe Hina was a masochist but things arent what they seem like at first in this manga. Even though Hina secretly seems to want it or enjoys the suffering/humiliation being inflicted on her it's actually simply comes down to the fact that she's in love and is afraid if she rejects Airi's advances Airi will reject/ignore her. There's a lot of kinks and sexual scenes in this manga so if that's not your thing don't read it(I make it sound like I'm into it lol..) if you take out the sexual aspects of airi and hina's relationship it all comes down to a depiction of an abusive relationship which is very real and in relationships like these the one being abused or bullied grows to like or enjoy it and sees it as love or the abuser's way of showing love. hina sees airi's abuse as love/care because airi mixes in the suffering/humiliation with care like making her food, babying her, giving her one on one time, showing her attention and a side she doesn't show even her closest friends. Airi also continued to abuse her because hina allowed her to, that's always the case with abusive relationships the abuser doesn't think they did anything wrong because the victim or their partner lets them do it (**most of the time**) so when they're called out or caught they don't think they were in the wrong because the one they were abusing didn't reject it. What Airi fails to see later was she was teaching and psychologically changing Hina into an sadist abuser like her. Later on the script changes where Hina gains the power and dominance in their relationship and she basically does what she's been groomed to do by Airi back to Airi, she thinks its love so Airi later is stuck in a fucked up world of her own creation.

The art is amazing, I only wish this was a josei or included mature/older characters but seeing this from high schoolers perspective is a refreshing change.