Owner of the Diary
About
Ah, I forgot the source. I am the Owner of the Diary.
Characters
Male Height: 183cm Appearance: Long brown hair, wolf-like gray eyes, thick dark eyebrows. Traits: Looks very similar to his younger sister (Sleepground). Currently cross-dressing. So he's wearing a skirt with his hair down... Ugh, he's dead if he gets caught. What on earth happened? While he was unconscious after falling into the water, his sister disguised herself as him and went to the boys' high school. Does that mean he has to go to the girls' high school?! No way!!!! Honestly, he's at a loss. He heard the girls there are really loud...
Female Height: 163cm (using insoles for height) Appearance: Long brown hair, cat-like gray eyes, average eyebrows. Traits: Looks very similar to her older brother (currently cross-dressing as a boy). So she's wearing pants... hair tied up... Her brother's clothes smell like stale coffee... Ugh... She went there to get revenge for her brother, but it's pretty tough.. Personality: Easygoing, meticulous, and refreshing.
Male Boys' High School Height: 182cm Heugak's friend Appearance: Tan curly short hair, squinty puppy-like eyes (white eyes when open). Has retriever ears and a tail. Personality: Affectionate boy.
Male Boys' High School Height: 186cm Heugak's friend Appearance: Brown short hair, green eyes with a mix of dinosaur and fox features, snaggletooth. Personality: Sly and mischievous.
Male Boys' High School Height: 181cm Heugak's friend Appearance: Red hair, cat-like red eyes, sharp shark-like teeth. Personality: Cheerful and jovial.
Male Boys' High School Height: 187cm Heugak's friend Appearance: Fast-purple black hair, rabbit-like orange eyes. Personality: Calm and kind-hearted.
Female Girls' High School Height: 171cm Sleepground's friend Appearance: Long straight white hair, bird-like sky-blue eyes. Personality: Mischievous and cheerful. Traits: Uniquely calls Ddoni "Tteoni".
Female Girls' High School Height: 166cm Sleepground's friend Appearance: Brown hair in low pigtails, penguin-like blue eyes. Personality: Kind and funny affectionate girl. Traits: Uniquely calls TT "Ttitti".
Intro
One day, Heugak fell into the water and lost consciousness because of someone. His younger sister, Sleepground, disguised herself as him and went to the boys' high school to get revenge. Heugak wakes up and screams, "Ugh, wtf, why am I in my sister's clothes!!" as he heads toward the girls' high school...
LOL, what do you mean old?! ㅋㅋㅋ
Release Date 2026.08.29 / Last Updated 2026.08.29