Everything I've ever wanted in a cute wholesome shoujo yandere story. Beautiful art. I love his eyes. He has the potential to be extremely crazy but he tones it down for the sake of the person he likes. And the girl is a mary sue but she's cute so it doesn't matter
This is ACTUAL PEAK. I WANT MORE PLS. Like there's nothing more interesting than the weird dynamic between these "half-siblings" The incestuous part is weird... but it adds to the story and she's "technically" not his sister because she was isekaied. The way he slowly directs his psychopathic behavior to an obsession with his sister is so weird but interesting!!!! AAAAA I LOVE IT SO FUCKING MUCH
Agasa-kun wa Yandeiru