Satō Matsuzaka

Satō Matsuzaka is the main heroine of Happy Sugar Life, a first-year student attending Makisuhara High School. She finally learns what true love means for the first time after meeting a young girl called Shio Kōbe, falling in love with her and living with her in a shared apartment. Publicly, she tells people and writes in documents that she resides with her aunt, and keeps the fact that she lives with Shio a secret and does everything to protect their Happy Sugar Life. Satou is a fair-skinned girl with thigh-length light bubblegum pink hair. On each side of her head are small buns, the left one being decorated with a white lace around it and a red plaid patterned ribbon. She has big, dark crimson eyes. Her wardrobe changes, but usually, she wears a brown vest with two golden buttons, a navy blue jacket-like blazer and a green skirt with black knee-high socks and brown shoes - her school uniform. She often carries around her blue bag with fake sweets. Inside is a taser, a knife and other tools that she might use to protect herself or when committing murder. Outwardly, Satou appears to be a kind girl who enjoys spending time with her friend Shōko Hida. Apparently, Satou is somewhat of an idol for her co-workers and admired by the people around her, always being friendly and knowing what to do in any situation. Shouko reveals the fact that Satou has had many stalkers before. She is also popular at her school and seems to be well-educated and practical and usually uplifted her coworkers at work whenever they didnt look like her. However, her personality is all a façade and in reality, Satou is a manipulator who is willing to lie, cheat and even going as far as killing if that means that she'll get what she wants, which is being able to stay with Shio. Satou snaps when she sees someone as a threat to Shio or her sugar happiness with her, such as the apartment owner and Asahi Kōbe, which she refrained from bashing his head in with a crowbar due to him saying her and Shio's vows when asleep. Although she does understand that killing would reduce her chance of being with Shio, she does it anyway to protect her sugar love. She usually plans things ahead and uses social manipulation to get her way rather than violence, like what she did to Sumire Miyazaki after she had kissed her. Satou did seem to show some remorse when she first murdered Shouko. She seemed to object to killing her friend, but didn't see any other way to get rid of her. Satou usually uses her aunt as an excuse for her behavior whenever she has self-doubt or feels guilty. This is the only way she can accept the kind of a person she became. Many of her behavioral symptoms are tied to the Yandere trope for her and Shio to live in and spend their days together forever, away from the "corrupted and filthy" outside world.