Comprehensive Comics About Daily Life as a Sister

My name is Ishida Ai. It sounds like a boy, right? To be honest, I feel the same way. Even the classmates around me think I am a boy. My childhood sweetheart actually confessed to me before she knew I was a girl? I am a time traveler and an orphan. When I was four years old, I was adopted by the Ishida family. There are three members of the Ishida family, including my current adoptive parents and a sister who is now married. After I was admitted to Shuchiin Academy, a famous high school in Neon, I decided to support myself and learn to be independent, and the Ishida family agreed. But not long after I left school, Ishida's parents died due to a home invasion. My sister's husband ran away because he couldn't repay the loan at a high-interest loan. In order not to put more pressure on me, my sister didn't tell me and paid off the loan alone. In the end, she died of overwork. My sister's daughter was also raised by me alone, including the loan, and later I took care of the daughter of a wealthy family. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.