The Story of My Sister and Me

I just took an ordinary guzheng lesson, but because of an inexplicable and strange word, my friend and I traveled through time. What happened? What's even weirder is yet to come. After time traveling, my father was single and married another wife. As a result, he had 13 more brothers and three younger brothers. Going through hardships with anime characters, dealing with various time travels... Why is life so tiring? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.